How To Fix AJ338 - Document &1: update error in function module &2

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 338

• Message text: Document &1: update error in function module &2

What causes this issue?

An update error occurred in the customer-defined function module &v2&
during adjustment reversal of document &v1&.

System Response

How to fix this error?

INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX

Procedure for System Administrators

Only pure database changes should be carried out in an update module.
All preparations required for the update must already be completed in
previous function modules.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AJ338 - Document &1: update error in function module &2 ?

  The SAP error message AJ338 indicates that there is an update error related to a document in the system. This error typically occurs during the processing of financial documents, such as invoices or journal entries, and is associated with a specific function module that failed to execute properly.
  Cause:
  The error can be caused by several factors, including:
  
  Data Inconsistencies: There may be inconsistencies in the data being processed, such as missing or incorrect information in the document.
  Configuration Issues: Incorrect configuration settings in the system can lead to update errors.
  Authorization Problems: The user may not have the necessary authorizations to perform the update.
  System Errors: There could be a temporary issue with the SAP system, such as a lock on the database or a problem with the function module itself.
  Custom Code: If there are custom enhancements or modifications in the function module, they may not be functioning as expected.
  
  Solution:
  To resolve the AJ338 error, you can take the following steps:
  
  Check the Error Log: Use transaction code SLG1 to check the application log for more details about the error. This log can provide insights into what went wrong during the update process.
  Review the Document: Verify the document that caused the error for any inconsistencies or missing data. Ensure that all required fields are filled out correctly.
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the action that triggered the error.
  Analyze the Function Module: If you have access to the ABAP code, review the function module mentioned in the error message to identify any potential issues or bugs.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Reprocess the Document: If the issue is resolved, attempt to reprocess the document that caused the error.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SLG1 (Application Log), SE37 (Function Module), and SE80 (Object Navigator) for debugging.
  SAP Notes: Regularly check for updates or patches related to the specific function module or process you are working with.
  Documentation: Review SAP documentation for the specific module or process to understand the expected behavior and requirements.
  
  By following these steps, you should be able to diagnose and resolve the AJ338 error in your SAP system.