How To Fix AH898 - Document &1 cannot be reversed (migration)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 898

• Message text: Document &1 cannot be reversed (migration)

What causes this issue?

Billing document &V1& originates from the legacy system and is not
marked as reversible.
Billing documents from a legacy system can only be reversed for
adjustment; this means they can be reversed in billing only - not in
invoicing. However, this is not possible in this case.
The billing document is required for technical reasons - such as
establishing the new <DS:DE.BEGABRPE>start of billing</> - and to
provide information.

System Response

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

How to fix this error?

If necessary, create a credit memo/backbilling using the
<DS:TRAN.EA16>Manual Billing</> function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH898 - Document &1 cannot be reversed (migration) ?

  The SAP error message AH898, which states "Document &1 cannot be reversed (migration)," typically occurs during the migration process when attempting to reverse a document that is not eligible for reversal. This can happen for various reasons, including:
  Causes:
  
  Document Status: The 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.
  Migration Restrictions: During migration processes (like data migration to S/4HANA), certain documents may be restricted from being reversed due to the migration settings or configurations.
  Document Type: The type of document may not support reversal. Some document types in SAP have specific rules regarding reversals.
  Posting Period: The document may belong to a closed posting period, which prevents any changes, including reversals.
  Custom Logic: There may be custom logic or validations in place that prevent the reversal of certain documents during migration.
  
  Solutions:
  
  Check Document Status: Verify the status of the document you are trying to reverse. If it has been cleared or settled, you may need to reverse the clearing or settlement first.
  Review Migration Settings: Ensure that the migration settings allow for the reversal of documents. You may need to consult with your SAP Basis or migration team to understand the restrictions in place.
  Document Type Validation: Check if the document type supports reversal. If not, you may need to find an alternative way to correct the entries.
  Open Posting Period: Ensure that the posting period for the document is open. If it is closed, you may need to reopen the period or use a different method to adjust the entries.
  Consult Documentation: Review SAP documentation or notes related to the specific migration process you are using. There may be specific guidelines or notes that address this issue.
  Custom Code Review: If there is custom code involved, review it to ensure that it is not inadvertently blocking the reversal of documents.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional context on migration-related issues.
  Transaction Codes: Familiarize yourself with transaction codes related to document management and migration, such as FB08 (Reverse Document) or other relevant transactions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the issue persists after checking these aspects, it may be beneficial to reach out to SAP support for further assistance.