How To Fix WP788 - Document & changed by &

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 788

• Message text: Document & changed by &

What causes this issue?

Previous status of document was &V3&.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WP788 - Document & changed by & ?

  The SAP error message WP788 with the text "Document & changed by &" typically occurs in the context of workflow or document processing in SAP. Here's a detailed explanation:
  
  Error Message
  WP788: Document & changed by &
  
  The placeholders (&) are replaced at runtime by the document number and the user who changed it.
  
  
  Cause
  This message usually appears when a workflow or a process tries to access or modify a document (such as a purchase order, invoice, or any business document) that has been changed by another user since the workflow last read it.
  In other words:
  
  The document was read by the workflow or process.
  Before the workflow could complete its action, another user changed the document.
  The workflow detects that the document has been changed and raises this message to prevent overwriting or inconsistent data processing.
  
  This is a concurrency or synchronization issue, ensuring data integrity by warning that the document has been updated by someone else.
  
  When does it occur?
  
  During workflow steps that involve document changes.
  When a background job or batch process tries to update a document that was modified interactively.
  In approval processes where the document status or content is changed by another user.
  
  
  Solution
  
  
  Check who changed the document:
  
  The message shows the user who last changed the document.
  Communicate with that user to understand the changes.
  
  
  
  Refresh the document data:
  
  Ensure the workflow or process reloads the latest version of the document before making changes.
  This may require adjusting the workflow logic or program to re-read the document data before update.
  
  
  
  Implement proper locking or synchronization:
  
  Use SAP locking mechanisms (enqueue/dequeue) to prevent simultaneous changes.
  Ensure that the workflow or program locks the document before processing.
  
  
  
  User training and process adjustment:
  
  Avoid parallel changes to the same document.
  Define clear ownership or responsibility for document changes.
  
  
  
  Technical debugging:
  
  Check the workflow logs (transaction SWI1 or SWIA) to see the exact step and context.
  Review the program or workflow step that triggers the error.
  Adjust the logic to handle document changes gracefully.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SWI1 - Workflow log
  SWIA - Workflow administration
  SM12 - Check for locked entries
  ME23N or relevant transaction to display the document
  
  
  
  SAP Notes:
  
  Search for SAP Notes related to WP788 or document concurrency issues.
  Sometimes SAP provides patches or recommendations for specific modules.
  
  
  
  SAP Help:
  
  Workflow documentation on handling document changes.
  Locking and synchronization in SAP.
  
  
  
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Document was changed by another user after workflow/process read it, causing concurrency issue.
  
  
  Effect
  Workflow/process cannot proceed to avoid overwriting changes.
  
  
  Solution
  Refresh document data, implement locking, coordinate users, adjust workflow logic.
  
  
  Check
  Workflow logs, document change history, locked entries.
  
  
  
  
  If you provide the exact context (module, transaction, or process), I can help with more specific guidance.