Hi experts
Our client has 4 Emarsys tenants. We noticed that Emarsys API endpoints are generic and doesn't really show the specific account/tenant URL. How then can we correctly identify which Emarsys account/tenant a message is coming to/going from?
We found the below info from Emarsys guides.

Does this mean we use the API username as identifier? For example, "clientuk_api" is for the UK account and "clientus_api" is for the US account. Is this right?
Thanks