Product Subscriptions
Subscribe one of your stores to another store's products so that qualifying products are automatically pushed into the subscribing store — using the synkro-publish tag or automatic product cloning.
Last updated July 8, 2026
Overview
Synkro’s Product Subscription system gives you precise control over which products flow from one store into another. A subscribing store defines a subscription to a source store, optionally narrowing it to a subset of the source store’s catalog using rules. Whenever a qualifying product in the source store is created, Synkro automatically clones that product into the subscribing store.
This is ideal when a store should carry only a curated slice of another store’s catalog — for example a B2B store that only stocks a certain vendor’s products, or a dropship seller that only wants a specific set of products from a supplier.
Product subscriptions are available to merchants on the Synkro Plus plan or higher.
Key concepts
- Source store — the store that products originate from. This is the store you are subscribing to. It can be any of your Synkro-connected stores, or a connected dropship supplier store.
- Subscribing store — the store that receives the products. Subscriptions are created from within this store, which becomes the destination for the cloned products.
- Product subscription — a link from a source store to the subscribing store, plus an optional set of rules that determines which of the source store’s products are eligible.
- Rules — optional filters (based on properties like vendor, SKU, tags, or price) that a source-store product must match to be included in the subscription. A subscription with no rules includes every product in the source store.
When a product is pushed into a subscribing store, Synkro creates a “child” copy that is linked back to the original “parent” product. Future edits to the parent product continue to sync down to the child. This is the same relationship created by Product Cloning.
How products are pushed into a subscribing store
There are two ways for a product to be pushed from a source store into the stores subscribed to it. In both cases, a product is only pushed to a subscribing store if it satisfies that subscription’s rules, and Synkro skips the clone if the subscribing store already has a cloned copy of the product.
1. The synkro-publish tag
When the source store adds the tag synkro-publish to a product, Synkro looks up every subscription whose source is that store, checks the product against each subscription’s rules, and clones the product into each subscribing store where it qualifies.
Because this is tag-driven, you can publish products in bulk using any of Shopify’s tag-editing methods (bulk tag editor, CSV import, third-party tag apps, etc.), which makes it easy to control exactly which products go out to your subscribing stores.
2. Automatic Product Cloning (set to product subscriptions)
Synkro’s Automatic Product Cloning system can also drive subscriptions. When a source store sets its automatic cloning option to Clone products only to stores with a matching product subscription, every newly created product in that store is automatically pushed into any subscribing store whose subscription rules the product matches — without needing to add the synkro-publish tag manually.
This is the best option when you want new products to flow into your subscribing stores automatically as you create them. See the Product Cloning documentation for the full list of automatic cloning options.
Creating a product subscription
Product subscriptions are created from within the store that should receive products (the subscribing store):
- Open the Synkro app in your subscribing store and navigate to
Settings>Product subscriptions. - Click
Create new product subscription. - Select the source store you want to subscribe to. This can be any of your Synkro-connected stores or a connected dropship supplier store.
- (Optional) Add one or more rules to limit which of the source store’s products are eligible. Leave the rules empty to subscribe to all products in the source store.
- (Optional) Give the subscription a name to describe its purpose.
- Click
Save.
Once saved, the subscription is active. Qualifying products will be pushed into the subscribing store whenever they are published in the source store via either mechanism described above.
Subscription rules
Rules narrow a subscription down to a subset of the source store’s products. Each rule has a type (the product property to check), a relation (how to compare it), and a value. A product must pass all of a subscription’s rules to qualify — so adding more rules makes a subscription more specific.
Rules can be based on product properties including:
- Vendor (and the vendor of the parent product)
- SKU
- Tags
- Price (and compare-at price)
- Whether inventory is tracked
For example, a rule of Vendor is equal to Acme limits the subscription to products from the vendor “Acme”. Combine multiple rules to express more precise conditions — for instance, products from a specific vendor and priced above a certain amount.
Backfilling products that already exist
Both push mechanisms are reactive — they act on products going forward, as they are published or created. If you set up a subscription for a source store that already contains products you want in the subscribing store, add the synkro-publish tag to those existing products (in bulk if needed) to push the qualifying ones into the subscribing store.
If you need help performing a large one-time import of an entire source store’s matching catalog, send an email to support@synkro-app.com and we can assist with a bulk backfill.
Related documentation
- Product Cloning — all of the ways to copy products between your stores, including the automatic cloning options that power subscriptions.
- Dropship supplier store setup — connect with other Shopify stores as dropship suppliers, one of the store types you can subscribe to.