Guidelines for Validating a Third-Party Control Account
If third-party control accounts are enabled, and the account entered is a third-party control account, you must enter third-party information in the journal entry.
Example
If an account is defined as a Supplier type third-party control account the subledger journal entry lines that use that account must include supplier information.
When a valid third-party control account is assigned to a journal line, you're required to provide third-party information, such as name and site.
Submit the Third-Party Balances Report to display subledger balances and account activity information for suppliers and customers.
The Customer or Supplier subledger third-party balances are updated when the journal is completed to a Final status.