SAP SD Billing cannot be Release to Accounting

This SAP message will appear if the system is unable to find the G/L codes match from the configuration in transaction VKOA

No account is specified in item 0000001001
Message no. F5 670

Diagnosis
No account was specified for account type "S" in item "0000001001" of the FI/CO document.

System Response
The Financial Accounting program cannot process the document.

Procedure
A system error has probably occurred in the application you called up. Check the data transferred to item "0000001001" of the FI/CO document.

Assuming that one of the key combination is Account Assignment Group, you will have to check whether have the Account Assignment Group been input in the Customer Master (Billing tabstrips - Accounting sections - Field name: Acct assgmt group).

The Account Assignment Group will be copied automatically into the sales order.

Check whether the configuration in transaction VKOA have been done correctly.

Check whether the sales order (VA03 - Goto - Header - Financial Accounting - Field name: AcctAssgGr) have been filled in automatically.

Check whether the billing document (VF03 - Goto - Header - Header - Field name: AcctAssgGr) have been filled in automatically.

If the customer master have not been maintained and the user have already input the sales order, then the user will have to maintained the Account Assignment Group manually either in the sales order or the billing documents.

Take note for One Time Customer, the user have to input the Account Assignment Group manually into the sales order. One Time Customer can be used by many customer, therefore, the system will not be able to determine the Account Assignment Group manually.