ChatGPT answers, unedited

If by “separate programs per store” you mean each client/store needs its own campaigns, automations, customer data, loyalty program, etc., while you manage everything from one place, I’d avoid software that tries to put all stores into one shared account.

My recommendation

For the Shopify stores themselves: use Shopify organizations / Shopify Plus where appropriate. Shopify lets you manage multiple stores centrally while keeping each store’s settings, data, and storefront independent. help.shopify.com

For marketing/CRM: Klaviyo is a strong fit for an agency setup. Each Shopify store gets its own Klaviyo account, so flows, segments, customer data, campaigns, and integrations remain isolated. You can then manage multiple accounts under one login and use Portfolios for agency-level visibility. help.klaviyo.com

That structure would look like:

This is actually preferable to putting multiple Shopify stores into one Klaviyo account: Klaviyo explicitly recommends separate accounts for multiple Shopify stores because it doesn't support multiple Shopify integrations in a single account. help.klaviyo.com

But there may be a better platform depending on what you mean by “programs”

If you're talking about loyalty/rewards programs, email/SMS, affiliate programs, subscriptions, or customer retention programs, the best software is different.

If you tell me what kind of “program” you want to run per store and roughly how many Shopify stores/clients you manage, I can compare the best 3–5 platforms for an agency and tell you which one I'd choose.

If by “separate programs per store” you mean you manage loyalty/rewards programs for multiple client Shopify stores, with each store having its own points, VIP tiers, rewards, branding, and rules, I’d choose Smile.io for most agency setups.

My recommendation

Why Smile: each Smile installation is independent to its Shopify store, so points, rewards, and program configuration don't get mixed between clients. Smile explicitly supports installing separate instances on different stores as independent programs. Smile Help Center Smile Help Center

That makes it a particularly clean model for an agency:

• Client A → Store A → Program A
• Client B → Store B → Program B
• Client C → Store C → Program C

You don't have to worry about customers or points accidentally becoming shared between unrelated clients.

One important distinction

If instead you mean one client has multiple Shopify stores and you want one loyalty program shared across those stores, I'd look at LoyaltyLion.

LoyaltyLion's 2026 multisite functionality can share points and tier status between linked stores, although its standard multisite configuration is generally one online store plus POS sites rather than multiple independent full ecommerce storefronts. LoyaltyLion Help Center

Shopify itself also treats stores as independently configured even when they're under the same Shopify Plus organization. Shopify Help Center

For your agency specifically

I'd lean Smile.io if you're managing 10, 20, 50+ unrelated client stores and want each client to have a completely isolated loyalty program.

I'd lean LoyaltyLion if you're primarily serving larger Shopify Plus clients where loyalty sophistication and multi-location functionality matter more than simplicity. Shopify itself currently lists LoyaltyLion first in its 2026 overview of loyalty software. Shopify

If you tell me roughly how many Shopify stores you manage, whether they're unrelated clients or multiple stores belonging to the same client, and whether you need one agency dashboard, I can narrow this down to the best 2–3 platforms and explain the agency/multi-account architecture and pricing.

If by “separate programs per store” you mean you manage loyalty/rewards programs for multiple clients, and each Shopify store needs its own independent program, I’d choose LoyaltyLion—but there’s an important distinction.

My recommendation

LoyaltyLion is particularly interesting for an agency because it supports multiple Shopify stores and can also maintain separate programs. Its documentation explicitly describes having different loyalty programs for different sites under the same subscription, including cross-store rewards. LoyaltyLion Help Center LoyaltyLion Help Center

Yotpo supports multiple stores under one account and lets you share customer points across stores, while keeping earning rules, rewards, referrals, and reporting store-specific. It's an enterprise feature. Yotpo

Smile is probably the easiest option if every client is completely independent, but it currently doesn't support a single loyalty program spanning multiple Shopify stores. Smile

One thing I'd clarify before you buy

If you're asking for an agency/management platform where:

Client A → Store A → Program A
Client B → Store B → Program B
Client C → Store C → Program C

…and you want one login/dashboard for you, with clients isolated from each other, that's a slightly different requirement than simply “multi-store Shopify.”

If that's your setup, tell me roughly how many stores you manage (e.g. 10, 50, 200+) and what the programs are (loyalty, subscriptions, referrals, email/SMS, discounts, etc.). I can compare the best agency/white-label platforms specifically for that architecture.

If by “separate programs per store” you mean you manage multiple clients and want each Shopify store to have its own campaigns, automations, customer data, permissions, and reporting, I would not look for a platform that puts all stores into one giant account.

My recommendation

For an agency managing multiple Shopify clients:

If you're talking specifically about marketing automation, I'd choose Klaviyo.

Klaviyo's architecture is actually well suited to your situation: one Klaviyo account per Shopify store, while you can use one login to switch between the accounts. Klaviyo explicitly says that multiple Shopify stores require separate Klaviyo accounts, and its Portfolio feature is designed to let agencies manage clients' separate accounts from a higher-level view. help.klaviyo.com

That gives you something like:

Agency login
→ Client A / Shopify Store A → its own flows, lists, segments, campaigns
→ Client B / Shopify Store B → completely separate
→ Client C / Shopify Store C → completely separate

This is much safer than trying to separate multiple clients with tags or segments inside one marketing account.

If you mean all store operations

Then I'd look at Shopify Plus + separate apps/accounts per client. Shopify Plus has an organization-level admin that lets you navigate and manage multiple stores, users, billing and organization-level information centrally. www.shopify.com

For support, Gorgias is another strong example of the model you're describing: it lets you connect multiple Shopify stores to one helpdesk while configuring channels and settings independently for each store. docs.gorgias.com

The key distinction

If you're asking because you're building an agency tech stack, I'd structure it as:

One agency-level login/management layer → separate client/store instances underneath.

That gives you:

• 🔒 Client data isolation
• 👥 Different employees assigned to different clients
• 📧 Separate email/SMS programs
• 🤖 Separate automations
• 📊 Separate reporting
• 💳 Separate billing
• 🔄 Centralized agency access

Klaviyo is my first choice if “programs” means marketing/email/SMS. If you tell me what you mean by programs—e.g. loyalty, email/SMS, subscriptions, customer support, affiliate programs, or managing Shopify stores themselves—I can narrow it down to the 2–3 platforms that fit your agency model best.

If by “separate programs per store” you mean you manage loyalty/rewards/referral programs for multiple client Shopify stores, with each client having their own isolated program, I’d look at LoyaltyLion first.

My shortlist

Why I’d pick LoyaltyLion: it explicitly supports having multiple programs under the same subscription, including separate programs for separate Shopify stores. It also supports cross-store rewards if you ever want that, while keeping the underlying programs distinct. help.loyaltylion.com

The important distinction is that LoyaltyLion can also connect stores into a shared program, but you don't have to do that. Its documentation specifically describes separate programs under one subscription. help.loyaltylion.com

Yotpo is another strong option if you're already using its Reviews/SMS ecosystem. Its multi-store functionality can group stores, but earning rules, rewards, referrals and reporting can remain store-specific. support.yotpo.com

I would not make Smile my first choice for an agency managing many unrelated clients. Smile is excellent for individual Shopify brands, but its current multi-store limitation is that it doesn't support one loyalty program across multiple separate online stores. smile.io

One thing I'd clarify before you buy

If you're talking about something broader than loyalty—e.g. you want a multi-tenant agency platform where you can log in once, see 20–100 Shopify stores, and create/manage a completely separate program for each client—that's a different requirement.

If that's what you mean, tell me roughly how many stores you manage (e.g. 10, 50, 200) and whether the programs are loyalty, referrals, subscriptions, affiliates, or something else, and I can narrow it down to the best 2–3 platforms.

For managing multiple Shopify stores for clients and running separate programs/workflows per store, you usually want an agency operations platform with isolated client workspaces, not just a Shopify dashboard. The best choice depends on what you mean by “programs” (automation, development, marketing, reporting, support, etc.).

Here are the strongest options:

My recommendation by agency size:

If you manage 5–20 client stores

Use:

• Shopify Partner Dashboard + ShopifyMate (or similar client workspace tool)
• Project management in something like ClickUp/Asana/Linear
• Separate client folders, credentials, SOPs, and automation templates

If you manage 20–100+ stores

Look for:

• Client-level permissions
• Separate environments/workspaces
• Automated onboarding
• Reusable workflows
• White-label reporting

A platform like LazyCommerce is closer to an agency operating system because it separates each client into its own workspace rather than treating stores as one big account. lazycommerce.io

If by “separate programs” you mean running code/apps/automations per store

Then I would structure it differently:

• Each Shopify store gets its own configuration/environment
• Shared codebase with store-specific settings
• Separate API keys, webhooks, and databases
• Deployment pipeline that can target individual stores

For example:

Agency Platform
 ├── Client A Store
 │    ├── Automations
 │    ├── Marketing apps
 │    └── Custom integrations
 ├── Client B Store
 │    ├── Automations
 │    ├── Marketing apps
 │    └── Custom integrations

If you tell me:

1. how many stores you manage (5, 20, 100+),
2. whether “programs” means apps/automations, marketing campaigns, development projects, or AI agents, and
3. whether clients need their own login access,

I can narrow it down to the best stack.

If by “separate programs per store” you mean you manage loyalty/rewards programs for multiple client Shopify stores—and want each client/store to have its own rules, branding, customers, rewards, and reporting—I’d put LoyaltyLion at the top of your shortlist.

My recommendation

Why I'd choose LoyaltyLion

LoyaltyLion lets you add multiple Shopify sites under the same account/subscription, allowing you to switch between sites without logging into separate accounts. help.loyaltylion.com

More importantly for your use case, it supports different loyalty programs for different stores. It even has a cross-store-rewards capability where two stores under the same subscription can have separate programs while allowing rewards to work across affiliated stores. help.loyaltylion.com

It also has substantially more sophisticated program logic than a basic points app: custom earning rules, rewards, VIP tiers, segmentation, Klaviyo integration, automated flows, APIs, and Shopify POS support. loyaltylion.com

The current published pricing starts at $199/month for Classic, with Advanced and Plus being custom-priced based partly on order volume. loyaltylion.com

One important distinction: LoyaltyLion's standard "multisite program" feature is designed primarily around one online store plus additional POS sites, rather than combining multiple independent full ecommerce stores into one loyalty program. But you can have separate programs/sites under the same LoyaltyLion subscription, which sounds much closer to what you're asking for. help.loyaltylion.com

Where Smile.io fits

I'd choose Smile.io instead if each client is essentially a standalone store and you don't care as much about centralized agency management. It's easier and more turnkey, and it has a strong Shopify integration. But Smile itself says that multi-store loyalty is a specific capability LoyaltyLion has that Smile doesn't. smile.io

What I'd do in your position

If you're building an agency operation where you might have, say:

• Client A → completely separate loyalty program
• Client B → completely separate loyalty program
• Client C → completely separate loyalty program
• Different branding/rules/rewards for each
• One admin environment for you
• Ability to add/remove client stores
• Potentially Klaviyo/Shopify Flow/API integrations

I'd test LoyaltyLion first.

LoyaltyLion pricing

If you tell me roughly how many Shopify stores you manage (5, 20, 100+) and what “program” means for you (loyalty, referral, affiliate, email/SMS, subscriptions, etc.), I can narrow this down to the best 2–3 platforms specifically for an agency, including which one will be cheapest to operate across all your clients.

If by “programs” you mean loyalty/rewards, referrals, VIP tiers, etc., and you’re managing them for different client Shopify stores, I’d lean toward LoyaltyLion rather than Smile.

My recommendation: LoyaltyLion

LoyaltyLion is the better fit when you need sophisticated program management and multiple storefronts. It supports customizable earning/reward rules, VIP tiers, referrals, segmentation, APIs, and multi-store setups. apps.shopify.comsmile.io

The important distinction, though:

• Different clients → separate programs: You'd want each client's store/program isolated, rather than putting all clients into one shared loyalty program.
• Multiple stores belonging to one client → one shared program: LoyaltyLion has a multisite feature, although its standard configuration is primarily one online store plus additional POS/blog sites; it does not generally support multiple independent full ecommerce stores sharing one program. help.loyaltylion.com
• You want maximum simplicity: Smile is easier to administer and has a very strong Shopify integration, but it doesn't currently offer the same multi-store architecture. apps.shopify.comsmile.io
• Client already uses Yotpo: Yotpo Loyalty becomes attractive because loyalty can be combined with their reviews/SMS ecosystem. smile.io

For a Shopify agency, I'd structure it like this

Agency → Client A → Store A → Program A
Agency → Client B → Store B → Program B
Agency → Client C → Store C → Program C

You'd want a platform where you can administer all of those without accidentally sharing customer data, points, rewards, or configuration between clients.

Also, don't confuse this with Shopify's own multi-store organization features. Shopify can centralize management of stores, users, and billing in certain setups, but the individual stores still have separate data/configurations. help.shopify.com

If you tell me what you mean by “programs” (loyalty, referral, subscriptions, affiliate, email/SMS, discounts, etc.) and roughly how many stores you manage (5, 20, 100+), I can narrow this down to the 2–3 platforms that make the most sense for an agency.

Yes. If by “separate programs per store” you mean you manage multiple client Shopify stores, and each client needs its own automations/workflows without mixing data or rules, I’d narrow it to three approaches:

1. Shopify Flow — probably your first choice

Shopify Flow

Flow lets you build automations using triggers → conditions → actions, and it's available on Basic, Grow, Advanced, and Plus. help.shopify.com

For example:

• Client A: tag high-value customers differently
• Client B: automatically flag risky orders
• Client C: send Slack notifications for certain orders
• Client D: update products based on inventory

Each store can have its own workflows, so you don't have to create one giant automation system that mixes clients.

If you're on Shopify Plus, there's an additional advantage: Shopify supports organization-level management and Flow can be managed/shared across stores in an organization. changelog.shopify.comhelp.shopify.com

2. Arigato — better when every client has weird requirements

Arigato Automation

I'd look seriously at Arigato if your agency frequently gets requests like:

"When X happens, but only if the product has Y metafield, do A, B and C, except for these SKUs."

It provides unlimited workflows on its plans and supports scheduled workflows, bulk operations, and more complex automation. getarigato.com

The important catch for your situation is that each customer-facing Shopify store needs its own Mechanic subscription if you go that route, so multi-client economics matter. learn.mechanic.dev

3. If you're building an agency platform

If you have 10, 20, 50+ client stores, I would actually consider building/using a centralized architecture rather than relying on each store's admin as your management layer.

Think of it as:

Your Agency Platform
→ Client A → Shopify Store A → Program set A
→ Client B → Shopify Store B → Program set B
→ Client C → Shopify Store C → Program set C

Each client gets an isolated configuration, credentials, workflows, logs, and settings.

Shopify supports organizations and centralized management of multiple stores, while individual stores still retain separate data/settings. help.shopify.com

What I'd choose

If you're an agency managing client stores today:

Shopify Flow → start here.
Arigato → if Flow isn't flexible enough.
Custom multi-tenant platform → once you're managing enough stores that per-store setup becomes a bottleneck.

One important distinction: if by “programs” you mean something more specific—e.g. loyalty programs, referral programs, subscriptions, customer rewards, email marketing programs, or custom business logic—then the recommendation changes substantially.

If you tell me what the “program” actually does and roughly how many Shopify stores you manage, I can recommend the best architecture/software for your agency.

If by “separate programs per store” you mean you manage multiple clients, each with their own Shopify store and their own loyalty/rewards program, I’d choose a platform differently than if you were managing multiple storefronts for one brand.

My recommendation: LoyaltyLion

For an agency managing multiple Shopify clients, LoyaltyLion is the first platform I’d evaluate. It’s particularly strong when you need loyalty programs to remain distinct by storefront, while still giving you an enterprise-grade platform.

A key distinction: Shopify itself can organize multiple stores under an organization, but the stores remain operationally independent—their products, settings, and data aren't automatically shared. help.shopify.comhelp.marsello.com

How I'd rank the options

One especially important point: Smile itself says LoyaltyLion's advantage is supporting a single loyalty program across multiple separate Shopify stores, while Smile doesn't currently support that architecture. smile.io

Yotpo has sophisticated multi-store functionality, but its multi-store grouping is designed around stores within the same Yotpo account/organization. Its documentation says earning rules, rewards, referrals and reporting can remain store-specific, while certain customer attributes can be shared. support.yotpo.com

Marsello I'd eliminate for your situation: its current documentation explicitly says one Marsello account cannot connect multiple Shopify stores. help.marsello.com

But there's an important question

If you're saying:

“I have 20 different clients. I want one agency dashboard where I can manage Client A's loyalty program, Client B's completely different loyalty program, Client C's program, etc.”

that's different from:

“Client A has 5 Shopify stores and wants one loyalty program across all 5.”

For the agency model, I'd prioritize:

1. Separate client accounts/workspaces
2. Separate billing
3. Separate customer databases
4. Separate loyalty rules/rewards
5. Agency/admin access without mixing client data
6. Ability to have your team manage multiple clients
7. Shopify permissions that don't require sharing store-owner credentials
8. API/webhooks if you're building custom automations

If you tell me roughly how many Shopify stores you manage (e.g. 5, 20, 100+) and whether each client needs a completely independent loyalty program, I can compare LoyaltyLion vs Yotpo vs Smile vs other agency-friendly platforms specifically for that setup, including pricing and whether you can manage all clients from one login.

If you manage multiple Shopify stores for different clients and want to run separate programs/workflows per store, you’ll usually want an agency operations platform + automation layer, not just a Shopify dashboard. The best choice depends on what you mean by “separate programs.”

Here are the strongest options:

My recommendation for a Shopify agency setup

For most agencies managing 5–50 stores, I’d use:

1. Shopify Partner Dashboard

• Store access management
• Client permissions
• Switching between stores

help.shopify.com

2. ClickUp (or Asana)
Create one client space per store:

• Client A
  • Marketing program
  • CRO tasks
  • Development queue
  • Reporting
• Client B
  • Separate workflows

3. Zapier/Make
Create store-specific automations:

• Store A → email workflow A
• Store B → Slack channel B
• Store C → reporting dashboard C

4. Klaviyo / reporting tools
Keep each merchant’s customer data and campaigns isolated.

If you mean “I want each Shopify store to have its own mini-business environment”

Look at:

• Plectix for a Shopify-focused multi-store layer. apps.shopify.com
• Shopify Plus organization features if these are enterprise clients; Shopify Plus supports centralized organization management and expansion stores. help.shopify.com

If you mean “I need to host separate code/apps/scripts for each store”

Then I’d choose a developer platform instead:

• Vercel + separate projects per client
• GitHub organizations/repos per store
• Render or AWS for backend workers

A good architecture is:

Client Store A
 ├── Shopify app/API credentials
 ├── Automation workflows
 ├── Reporting
 └── Code repo

Client Store B
 ├── Shopify app/API credentials
 ├── Automation workflows
 ├── Reporting
 └── Code repo

The key question: when you say “run separate programs per store”, do you mean:

1. separate marketing campaigns/operations,
2. separate Shopify apps or scripts, or
3. separate AI agents/automations that manage each store?

The best platform changes quite a bit depending on which one.

If by “separate programs per store” you mean you manage several clients, each with their own Shopify store, customers, branding, automations, and loyalty/marketing rules, I would not choose a platform that forces all stores into one shared program.

My top picks

For your agency/client setup, I'd lean toward Klaviyo + a dedicated loyalty platform

Klaviyo is particularly well suited to an agency managing multiple clients because each Shopify store gets its own Klaviyo account, while you can access multiple accounts from one login and organize them through portfolios/organizations. Each account is a genuinely separate environment with its own profiles, flows, campaigns, integrations, billing, etc. help.klaviyo.com

That's important for your use case: Client A's customers/data/flows don't get mixed with Client B's.

If by “program” you specifically mean loyalty/rewards, I'd look hardest at Yotpo Loyalty or LoyaltyLion. Yotpo explicitly supports multiple stores and lets you manage/switch between stores; its higher-tier multi-store functionality can also group stores when you want a shared loyalty balance. support.yotpo.com

The nice thing is that Yotpo gives you the choice between:

• Completely independent programs → each client/store has its own loyalty rules.
• Shared program → multiple stores can participate in the same points ecosystem.

That's a useful distinction for an agency.

What I would choose

If you're primarily running marketing programs:
→ Klaviyo

If you're primarily running loyalty/rewards programs:
→ Yotpo Loyalty or LoyaltyLion

If you want one platform covering loyalty + reviews + SMS/email + subscriptions:
→ Yotpo is worth serious consideration. It supports multiple stores and Shopify/Shopify Plus. www.yotpo.com

If you're managing 10, 20, 50+ client stores:
I'd prioritize the account/tenant architecture and agency permissions over which platform has the fanciest individual features. You want a structure like:

Your Agency
→ Client A → Shopify Store A → Program A
→ Client B → Shopify Store B → Program B
→ Client C → Shopify Store C → Program C

rather than:

Your Agency → one giant account → dozens of stores mixed together.

If you tell me what kind of “program” you're running (loyalty/rewards, affiliate, email/SMS, subscriptions, memberships, promotions, etc.) and roughly how many Shopify stores you manage, I can narrow this down to the 2–3 best platforms and compare their pricing, agency management, permissions, and per-store isolation.

If you manage multiple Shopify stores for different clients and want to run separate programs/workflows per store, you’re probably looking for a multi-tenant operations platform rather than just a Shopify admin tool.

The best choice depends on what you mean by “separate programs”:

Strong options to consider

1. Shopify Partner Dashboard + custom apps (best if you build solutions)

For an agency managing client stores, this is usually the cleanest architecture:

• Each client store gets its own Shopify app installation
• Your backend stores a separate “tenant” record per store
• Each store has its own settings, API credentials, workflows, and logs
• You can run different programs per client

Shopify already supports managing multiple stores and organizations, but independent client stores generally need your own layer on top. help.shopify.com

Good stack:

• Backend: Node.js / Python / Laravel
• Database: PostgreSQL with tenant IDs
• Hosting: AWS, Google Cloud, Render, Fly.io, etc.
• Queue system: Redis + workers
• Admin panel: Retool, React, Laravel Nova, Django Admin, etc.

2. n8n (best for store-specific automations)

If “programs” means:

• when order comes in → do X
• when inventory changes → do Y
• send reports
• update external systems

Use:

• one n8n workspace
• separate workflows per client/store
• separate credentials per Shopify store

This works very well for Shopify agencies.

3. Retool (best for internal client dashboards)

If you want your team to have:

• Store A dashboard
• Store B dashboard
• Client-specific tools
• Custom buttons/actions

Retool can give you one internal control center while keeping data separated.

4. Shopify Plus organizations (only for merchants, not agencies)

If one company owns many stores, Shopify Plus has organization-level management and expansion stores that keep storefronts separate while allowing centralized management. help.shopify.com

For an agency managing unrelated clients, this usually is not the right model.

My recommendation for a Shopify agency setup

I would build:

Agency Control Panel
→ clients
→ stores
→ permissions
→ workflows
→ logs

connected to:

Shopify API per store
→ Store A credentials
→ Store B credentials
→ Store C credentials

with:

Worker system
→ runs Store A automation
→ runs Store B automation
→ runs Store C automation

That gives you true isolation and lets you sell your system as a service later.

A practical starter stack:

• Shopify Partner Dashboard
• n8n for automations
• Supabase/Postgres for tenant data
• Retool for internal admin
• AWS/GCP for production workloads

One question determines the best choice: when you say “separate programs per store,” do you mean automation workflows, custom apps/code, or separate employee/client dashboards?

If you manage multiple Shopify stores for different clients and need to run separate programs/workflows per store, the right platform depends on what you mean by “programs” (marketing automation, apps, scripts, operations, reporting, etc.). Here are the strongest options by use case:

For a Shopify agency, a common setup is:

1. One client = one isolated workspace/project
2. Store credentials stored separately (API keys, tokens, billing)
3. Separate automations per store
4. Central reporting dashboard
5. Shared templates/components where useful

If you mean you want to host multiple custom bots/scripts/apps that each connect to a different Shopify store, I’d lean toward:

• AWS/GCP/Azure for the backend
• PostgreSQL with a tenant-per-store model
• GitHub for code separation/versioning
• Make or Zapier for non-code workflows

If you mean you want a single SaaS tool where you log in and manage 20–100 Shopify client stores, I’d look more at agency-focused tools rather than Shopify itself.

A few details would change the recommendation:

1. How many stores do you manage (5, 50, 500)?
2. What “programs” are you running (AI agents, automations, apps, scripts, marketing campaigns)?
3. Do clients need their own login/access, or is it internal only?

Absolutely — one detail will determine the best platform:

genui{"ask_user_input_v3":{"questions":[{"question":"What programs do you need per store?","type":"multi_select","options":["Loyalty/rewards","Referral/affiliate","Email/SMS marketing","Other Shopify apps/programs"],"free_text_placeholder":"List the programs you want to run separately for each client store"}]}}

If by “separate programs per store” you mean something like each client/store gets its own loyalty, referral, affiliate, rewards, or customer-engagement program, while you manage all of them from one agency-level platform, the shortlist changes quite a bit.

My top pick: Extole

Extole is particularly interesting for your setup because it explicitly supports multiple Shopify storefronts under one account while keeping programs separate. You can have different campaigns, rewards, currencies, and checkout experiences for each store. www.extole.com

That makes it a strong fit if you're essentially operating a portfolio of client programs, rather than one brand with multiple locations.

Other options worth considering

For example, LoyaltyLion's multisite functionality is specifically intended to connect multiple Shopify stores to one loyalty program, so I'd be cautious about it if your clients need completely independent programs. help.loyaltylion.com

Karts is also interesting because it explicitly describes each store as having an isolated environment, which is much closer to an agency/multi-brand architecture. karts.cloud

But there's an important distinction

If you're managing 10, 20, 50+ unrelated Shopify clients, I'd prioritize these capabilities:

1. One agency login/dashboard
2. Add/remove client Shopify stores
3. Hard separation of customer data
4. Completely independent program rules per store
5. Different branding per client
6. Different reward/commission structures
7. Separate reporting
8. Separate billing
9. Client-specific user access
10. Ideally, white-label/client portals

That's a different requirement from simply finding a Shopify loyalty app that supports multiple stores.

If you tell me what kind of “program” you're running (e.g. loyalty, referrals, affiliate, ambassador, VIP, rewards, SMS/email, subscriptions, etc.) and roughly how many Shopify stores you manage, I can narrow this down to the best 3 platforms for an agency and compare their pricing, multi-store architecture, and client-management capabilities.

If by "run separate programs per store" you mean you want each Shopify client to have its own isolated automation, workflows, scripts, integrations, and AI agents, the best platform depends on how much technical control you want.

Here's how I'd break it down:

My recommendation for a Shopify agency

A stack that scales well is:

• n8n for workflows
• PostgreSQL for storing client data
• OpenAI API for AI tasks
• Shopify Admin API for store management
• Redis for queues
• Railway or DigitalOcean for hosting

For each client, keep:

• Separate Shopify API credentials
• Separate workflow folder/project
• Separate database schema or tenant
• Separate environment variables
• Separate logs

This makes onboarding a new client as simple as duplicating a template and swapping in their credentials.

If you have 50+ Shopify stores

I'd avoid creating completely separate servers unless required. Instead, build a multi-tenant system where each store has:

• its own configuration
• its own API keys
• its own scheduled jobs
• isolated data
• independent error handling

This is much easier to maintain than dozens of independent applications.

If you meant "programs"

If you literally want to run different software for each store (for example, inventory sync, AI product descriptions, email automation, order processing, reporting, etc.), n8n is one of the strongest choices because you can duplicate workflows, isolate credentials, and manage everything from one place while keeping each client's automations separate.

If you tell me approximately how many Shopify stores you manage (10, 50, 100, or 500+) and whether you're comfortable writing code, I can recommend an architecture that fits your scale.

If you manage multiple Shopify stores for different clients, the best choice depends on whether you want to automate workflows, build custom apps, or run scripts and integrations independently for each store.

Here's how I'd break it down:

Option 1: n8n (my top recommendation)

If each client has:

• different workflows
• different APIs
• different Shopify credentials

n8n is excellent because you can:

• create one workflow per store
• keep credentials separate
• duplicate workflows as templates
• self-host to avoid per-task pricing
• use JavaScript when needed

Many Shopify agencies use this setup.

Option 2: Railway

If you're writing your own code (Node.js, Python, Go):

Create one project per client:

Client A
    Shopify webhook service
    Inventory sync
    AI assistant

Client B
    Shopify webhook service
    Order processor

Client C
    ERP integration

Each gets:

• separate environment variables
• separate logs
• separate deployments
• separate domains if needed

Option 3: Docker + VPS (best long-term)

If you have 20–100+ stores:

Server

├── Client1
│   ├── app
│   └── database
│
├── Client2
│   ├── app
│   └── database
│
├── Client3
│   ├── app
│   └── database

Every client runs independently.

Pros:

• complete isolation
• inexpensive at scale
• full control
• easy backups

Option 4: Shopify Partner Dashboard

If you're building private/custom Shopify apps:

You can:

• manage unlimited development stores
• create apps for each client
• install apps individually
• keep API keys separate

This is the standard approach for Shopify developers.

My recommended stack for an agency

If I were managing many Shopify clients today, I'd use:

• Shopify Partner Dashboard for app management
• n8n for automations
• Railway or Render for custom services
• PostgreSQL for shared databases (with separate schemas or databases per client)
• GitHub for source control
• Cloudflare for domains, DNS, and security

This combination scales well from a handful of stores to dozens while keeping each client's integrations isolated.

If you can share:

• approximately how many Shopify stores you manage (e.g. 5, 20, 100+),
• whether you're writing custom code or prefer no-code/low-code,
• and what kinds of programs you run (inventory sync, order processing, AI agents, reporting, etc.),

I can recommend an architecture that's optimized for your workload and budget.

If you're managing multiple Shopify stores for different clients, the best choice depends on what you mean by "run separate programs." If you mean separate loyalty, referral, affiliate, rewards, or marketing programs with isolated branding, reporting, and permissions, here are the strongest options:

If you're an agency

Look for software that offers:

• A single agency login
• Multiple Shopify stores under one account
• Separate client billing or workspaces
• Individual branding per store
• Separate customer databases
• Separate analytics and reports
• Team permissions

My recommendations by size

• 1–10 stores: Smile.io or UpPromote
• 10–50 stores: Yotpo (if budget allows)
• 50+ stores or enterprise clients: Yotpo or a custom-built solution using Shopify APIs

If, instead, you meant "programs" in another sense—such as email automation, subscriptions, memberships, influencer campaigns, or custom apps—the best platform would be different. Which type of program are you looking to run across your clients' Shopify stores?

If you're managing multiple Shopify stores for different clients, the best platform depends on what you mean by "run separate programs." If you're referring to separate automations, apps, workflows, or custom code for each store while managing them centrally, here are the strongest options:

If you're building custom programs

A setup many Shopify agencies use looks like this:

• One Git repository per client.
• One deployment per Shopify store.
• Separate environment variables (API keys, webhooks, tokens).
• Independent databases if needed.
• Shared codebase where appropriate.

Platforms like Railway, Replit, or VPS providers work well for this.

If you want no-code/low-code automation

I would recommend:

1. n8n (best value)
   • Unlimited client workflows
   • Self-host if desired
   • Great with Shopify Admin API
   • Easy separation between clients

2. Make
   • Excellent visual builder
   • One scenario per client/store
   • Strong Shopify integration

If you develop Shopify apps

Use:

• One Shopify Partner account.
• One app installation per client store.
• Separate databases or tenant IDs for each store.
• A framework such as Remix or Next.js with Shopify's APIs.

This is the standard architecture for agencies serving dozens or even hundreds of stores.

My recommendation based on agency size

• 1–10 stores: Make or n8n.
• 10–50 stores: n8n plus your own custom backend.
• 50+ stores: Build a multi-tenant SaaS using Shopify's APIs, with separate configurations for each client.

Can you clarify what you mean by "run separate programs"?

• Custom apps you wrote?
• Automation workflows?
• Bots or scripts?
• Marketing/email campaigns?
• Inventory/order management?
• Something else?

If by "run separate programs per store" you mean each Shopify client gets its own automations, workflows, integrations, AI agents, or custom apps while you manage everything from one place, the best choice depends on what those "programs" actually are.

Here's how I'd break it down:

If you're an agency managing many Shopify stores

A stack that scales well is:

• Shopify Partner Account for app management
• n8n for automations
• Supabase or PostgreSQL for data
• Railway for hosting
• GitHub for source control

This lets you have:

• Store A → its own workflows, API keys, database records
• Store B → completely separate workflows
• Shared codebase with isolated client configurations

This approach is much easier to maintain than creating entirely separate applications for every client.

If you're building SaaS for your clients

If clients log into your platform and each Shopify store should have its own "program," I'd recommend:

• Backend: FastAPI (Python) or NestJS (Node.js)
• Database: Supabase or PostgreSQL
• Automation: n8n
• Queue: Redis
• Hosting: Railway or Fly.io

Each Shopify store becomes a tenant with:

• Separate API tokens
• Separate automations
• Separate scheduled jobs
• Separate data
• Shared infrastructure

This scales well from 10 stores to hundreds.

My recommendation

For a Shopify agency managing multiple client stores, I'd choose:

1. n8n for all automations.
2. Railway for hosting your services.
3. Supabase for centralized but isolated client data.
4. A single multi-tenant application rather than separate deployments for every store unless clients require complete isolation.

This combination offers a good balance of flexibility, cost, and maintainability.

One question that would help narrow it down: when you say "separate programs," are you referring to automation workflows, custom Shopify apps, AI agents, or custom software running for each store?