How To Fix AJ670 - Billing doc. &1 not reversable by EA21 (invoicing doc. &2 reversed w. &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 670

• Message text: Billing doc. &1 not reversable by EA21 (invoicing doc. &2 reversed w. &3)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AJ670 - Billing doc. &1 not reversable by EA21 (invoicing doc. &2 reversed w. &3) ?

  The SAP error message AJ670 indicates that a billing document cannot be reversed using transaction EA21 because it has already been reversed with another document. This typically occurs in the context of billing and invoicing processes within SAP, particularly in the SAP Convergent Charging or SAP Convergent Invoicing modules.
  Cause:
  
  Previous Reversal: The billing document you are trying to reverse has already been reversed using a different document. This means that the system has already processed a reversal for that billing document, and it cannot be reversed again using the same method.
  Document Status: The status of the billing document may not allow for further reversals. For example, if the document is already marked as reversed or completed, the system will prevent further actions.
  Invoicing Document: The invoicing document associated with the billing document may have been processed in a way that restricts further reversals.
  
  Solution:
  
  Check Document History: Review the history of the billing document to confirm if it has already been reversed. You can do this by checking the document flow or using transaction codes like VF03 (Display Billing Document) to see the status and related documents.
  Use Correct Transaction: If the document has already been reversed, you may need to use the appropriate transaction to handle the situation. For example, if you need to create a new billing document or adjust the existing one, consider using transactions like VF01 (Create Billing Document) or VF02 (Change Billing Document).
  Consult with SAP Support: If you believe that the reversal should be possible and you are encountering this error unexpectedly, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error message.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  EA21: Reverse Billing Document
  VF03: Display Billing Document
  VF01: Create Billing Document
  VF02: Change Billing Document
  
  
  SAP Documentation: Review SAP documentation or help files related to billing and invoicing processes for more detailed information on handling billing documents and their reversals.
  User Authorizations: Ensure that you have the necessary authorizations to perform billing document reversals, as restrictions may apply based on user roles.
  
  By following these steps, you should be able to address the error message AJ670 and understand the context of the issue within your SAP environment.