Your finance team wants sales revenues for customers of affiliated companies to be posted to a different sales revenue account in the general ledger.

Create an account condition master record for the customers of affiliated companies.

Maintain the requested sales revenue account directly in the customer master record of the payer. 

Assign the affected sales revenue account to the key combination in Customizing that includes the account assignment group field. 

Assign an access that includes the account assignment group as a key field within the access sequence used for account determination. 

Assign the same predefined account assignment group to the customer master for all customers of affiliated companies.