How To Fix WS785 - Document &1 has entity tag &2, entitiy tag &3 is not valid anymore

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 785

• Message text: Document &1 has entity tag &2, entitiy tag &3 is not valid anymore

Self-Explanatory Message

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• What is the cause and solution for SAP error message WS785 - Document &1 has entity tag &2, entitiy tag &3 is not valid anymore ?

  The SAP error message:
  WS785 Document &1 has entity tag &2, entity tag &3 is not valid anymore
  
  Cause
  This error typically occurs in SAP when there is a mismatch or inconsistency in the entity tags (ETags) used for document version control or synchronization. Entity tags are used to ensure that the document or data being processed is the latest version and has not been changed or invalidated by another process or user.
  Specifically, the error means:
  
  The document identified by &1 was expected to have an entity tag &2.
  However, the current valid entity tag for that document is &3.
  This indicates that the document has been updated or changed since the entity tag &2 was assigned.
  The entity tag &2 is now outdated or invalid.
  
  This situation often arises in scenarios involving:
  
  Document locking and concurrency control.
  Web services or OData services where ETags are used for optimistic concurrency.
  Cache or synchronization mechanisms where the client holds an outdated version of the document.
  
  
  Solution
  To resolve this error, you should:
  
  
  Refresh the Document or Data:
  
  Retrieve the latest version of the document or data to get the current valid entity tag (&3).
  This ensures you are working with the most recent data.
  
  
  
  Retry the Operation:
  
  After refreshing, retry the operation (e.g., update, delete) using the current entity tag.
  This prevents conflicts due to outdated data.
  
  
  
  Check for Concurrent Changes:
  
  Investigate if other users or processes have modified the document.
  Coordinate or serialize access if necessary to avoid conflicts.
  
  
  
  Review Application Logic:
  
  Ensure that your application or integration logic correctly handles entity tags.
  Implement proper error handling for concurrency conflicts.
  
  
  
  Clear Cache if Applicable:
  
  If caching is involved, clear or refresh caches to avoid stale data.
  
  
  
  
  Related Information
  
  Entity Tags (ETags): Used in HTTP and OData protocols for concurrency control. They represent a version identifier for a resource.
  Optimistic Locking: This error is a form of optimistic locking failure, where the system detects that the data has changed since it was last read.
  SAP Notes and Documentation: Check SAP Notes related to WS (Web Services) or OData services for specific fixes or patches.
  Transaction Logs: Review change logs or audit trails to identify who or what changed the document.
  SAP Gateway / OData Services: If this error occurs in SAP Gateway or OData services, ensure that the client handles ETags properly.
  
  
  If you provide the context in which this error occurs (e.g., during a specific transaction, web service call, or integration scenario), I can help with more targeted advice.