How To Fix FKKBIX893 - Billable item &1 &2 was already billed with document number &3

FKKBIX893 - Overview

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 893

• Message text: Billable item &1 &2 was already billed with document number &3

What causes this issue?

Billable item &v1& &v2& was already billed with document number &v3&.
When a billable item was reversed, the system determined that the item
was already billed, but the related billing document was not yet
invoiced. In that case, the system dictates that the billing document
has to be reversed before the billable item can be reversed.

System Response

If they do not already exist, the system creates reversal requests for
automatic reversal (for example, document reversal process) for the
billing document and the billable item.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FKKBIX893 - Details

• The SAP error message FKKBIX893 indicates that a billable item has already been billed with a specific document number. This error typically occurs in the context of billing processes, particularly in the SAP Convergent Charging (SAP CC) or SAP Contract Accounts Receivable and Payable (SAP FI-CA) modules.
  
  Cause:
  The error arises when there is an attempt to bill an item that has already been processed in a previous billing run. This can happen due to:
  
  Duplicate Billing Attempt: The same billable item is being billed again, either due to a manual error or a system issue.
  Incorrect Billing Logic: The logic in the billing process may not be correctly identifying already billed items.
  Data Integrity Issues: There may be inconsistencies in the database or issues with the data being processed.
  
  
  Solution:
  To resolve the FKKBIX893 error, you can take the following steps:
  
  
  Check Billing Document: Verify the document number mentioned in the error message to confirm that the