COS uses the concept of a partner to group a set of resources, such as customers, products and accounts. A partner is typically your business as a whole, but could also be a division or department within your business.

Your API credentials can be linked to multiple partners, however it is typically only linked to one.

Once a resource has been assigned to a partner, it cannot be reassigned to another partner. Given this, it is crucial resources are created under the correct partner configuration.