How To Fix AH660 - Manual credit memo/backbilling &1 cannot be reversed

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 660

• Message text: Manual credit memo/backbilling &1 cannot be reversed

What causes this issue?

A manual credit memo/backbilling with no link to invoicing/accounts
receivable and/or payable cannot be reversed with the billing reversal
function.

System Response

Processing was canceled

How to fix this error?

You may need to delete the document using a function key in Transaction
EA16.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH660 - Manual credit memo/backbilling &1 cannot be reversed ?

  The SAP error message AH660, which states "Manual credit memo/backbilling &1 cannot be reversed," typically occurs when there is an attempt to reverse a manual credit memo or backbilling document that is not eligible for reversal. Here are some potential causes, solutions, and related information regarding this error:
  Causes:
  
  Document Status: The credit memo or backbilling document may be in a status that does not allow for reversal. For example, if the document has already been cleared or settled, it cannot be reversed.
  Document Type Restrictions: Certain document types may have restrictions on reversals based on company policy or configuration settings in SAP.
  Posting Period: The posting period for the document may be closed, preventing any changes or reversals.
  Dependencies on Other Documents: The credit memo may be linked to other documents (like invoices) that have already been processed, making it impossible to reverse the credit memo.
  Authorization Issues: The user attempting the reversal may not have the necessary permissions to perform this action.
  
  Solutions:
  
  Check Document Status: Review the status of the credit memo or backbilling document to ensure it is eligible for reversal. If it has been cleared or settled, you may need to take alternative actions.
  Review Document Type Configuration: Consult with your SAP administrator or configuration team to understand if there are specific restrictions on the document type you are trying to reverse.
  Open Posting Period: Ensure that the posting period for the document is open. If it is closed, you may need to open it temporarily to perform the reversal.
  Check Related Documents: Investigate if there are any related documents that may be affecting the ability to reverse the credit memo. You may need to reverse or adjust those documents first.
  User Authorization: Verify that the user has the necessary authorizations to perform the reversal. If not, the user may need to request additional permissions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB08 (to reverse documents) and FBRA (to reverse a document with a reference).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions.
  Documentation: Review SAP documentation or help files related to credit memos and backbilling processes for further insights into handling these documents.
  
  If the issue persists after checking these aspects, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in financial accounting within SAP.