We want Amazon Seller reports to send us Account Id and Account Name for all our tables.

There is no column currently that contains Account Id or Account Name in Orders/Order Item or any other table.

Account Id is very important to understand which order belongs to which account. For example: if we have 2 accounts connected with the same connector in the same region, how we will know which order belongs to which account?

 
To sync the order, we call the order endpoint, and to sync the order item, we call the order item endpoint. I checked both endpoints and found no Account ID or Name in them.