How To Fix WS_TOOL863 - Structure &1 was changed incompatibly; structure was reconstructed

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 863

• Message text: Structure &1 was changed incompatibly; structure was reconstructed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL863 - Structure &1 was changed incompatibly; structure was reconstructed ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WS_TOOL863 Structure &1 was changed incompatibly; structure was reconstructed
  
  Cause:
  This error occurs when a data structure (e.g., a DDIC structure or a work area type) used in the ABAP program or tool has been changed incompatibly after it was initially used or activated. The system detects that the structure's definition has changed in a way that is not backward compatible, and as a result, it reconstructs the structure internally.
  Typical scenarios causing this error include:
  
  Changing the type or length of fields in a structure.
  Adding or removing fields in a structure that is already in use.
  Changing the order of fields in the structure.
  Changing the data element or domain of a field.
  Modifying a structure that is part of a generated runtime object or tool (e.g., a tool-generated structure in the ABAP Workbench or a generated interface).
  
  The system tries to maintain consistency by reconstructing the structure, but this incompatibility triggers the warning/error message.
  
  Solution:
  
  
  Check the Structure Definition:
  
  Go to the ABAP Dictionary (transaction SE11).
  Look up the structure mentioned in the error message (&1 will be replaced by the actual structure name).
  Review recent changes to the structure fields, types, lengths, or order.
  
  
  
  Adjust the Program or Tool:
  
  If the structure was changed intentionally, ensure that all programs, function modules, or tools using this structure are adjusted accordingly.
  Recompile or regenerate any dependent objects (programs, function groups, interfaces, etc.) that use this structure.
  
  
  
  Transport and Consistency:
  
  If the structure was changed in a development system, ensure that the changes are properly transported to other systems.
  Check for inconsistencies in the transport layers or versions of the structure.
  
  
  
  Rebuild or Regenerate Tools:
  
  If the structure is part of a generated tool (e.g., a generated interface or a tool-generated structure), regenerate the tool or interface to align with the new structure definition.
  
  
  
  Clear Buffers and Restart:
  
  Sometimes, the runtime buffer or internal caches hold old versions of the structure.
  Use transaction SE14 (Database Utility) to adjust or rebuild database objects if necessary.
  Perform an SAP system buffer refresh (/nSMLG or RZ11 parameter adjustments) or restart the system if the problem persists.
  
  
  
  Check OSS Notes:
  
  Search SAP OSS Notes for the specific error message and structure name for any known issues or patches.
  
  
  
  
  Related Information:
  
  Transaction SE11: ABAP Dictionary maintenance for structures.
  Transaction SE80: Object Navigator to check programs and interfaces using the structure.
  Transaction SE14: Database utility for adjusting database objects.
  SAP OSS Notes: Search for WS_TOOL863 or related structure incompatibility issues.
  ABAP Documentation: Review guidelines on changing dictionary objects and their impact on runtime objects.
  
  
  Summary:
  The error WS_TOOL863 indicates that a structure was changed in a way that is incompatible with its previous definition, causing the system to reconstruct it. To resolve this, review and correct the structure changes, adjust dependent programs, regenerate tools/interfaces, and ensure system consistency.
  
  If you provide the exact structure name or context, I can help with more specific guidance!