A partner managing various stores, such as B2B & B2C or stores in different countries like France & Italy, can streamline integration by utilizing a multi-store API key. This key empowers developers to seamlessly access and modify resources within any combination of their designated stores.

When using a multi-store API key, the targeted store(s) must be specified via:

Create resources: requiredstore_id body parameter
Retrieve resources: required store_id query parameter when using a non unique externally defined identifier
List resources: optional store_id query parameter to filter the resources on a particular store
Update resources: required store_id body parameter when using a non unique externally defined identifier
Delete resources: required store_id body parameter when using a non unique externally defined identifier

Note that a resource's store_id cannot be modified after creation.