How To Fix WS_TOOL864 - Structure &1 was changed incompatibly; structure must be reconstructed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 864

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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL864 - Structure &1 was changed incompatibly; structure must be reconstructed ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WS_TOOL864 Structure &1 was changed incompatibly; structure must be reconstructed
  
  Cause:
  This error occurs when a data structure (e.g., a table type, structure, or a dictionary object) in the ABAP Dictionary has been changed in a way that is incompatible with its previous definition. Such incompatible changes can include:
  
  Changing the length of a field.
  Changing the data type of a field.
  Removing or reordering fields.
  Changing the structure in a way that breaks existing references or dependent objects.
  
  When such changes happen, the runtime environment detects that the structure's current version does not match the version expected by programs or tools that use it. This leads to the incompatibility error.
  
  What does "structure must be reconstructed" mean?
  It means that all dependent objects (programs, function modules, screens, etc.) that use this structure must be recompiled or regenerated to align with the new structure definition. The system requires a "reconstruction" of the structure usage to ensure consistency.
  
  Solution:
  
  
  Recompile dependent objects:
  
  Use transaction SE14 (Database Utility) or SE11 (Data Dictionary) to activate the structure again.
  Recompile all programs, function modules, classes, and other objects that depend on this structure.
  You can use transaction SE80 or SE38 to recompile programs manually.
  For mass recompilation, use report RS_PROGRAM_CHECK or RS_ABAP_REORG.
  
  
  
  Rebuild the structure:
  
  Go to SE11, enter the structure name, and activate it again.
  This will trigger the system to regenerate the structure metadata.
  
  
  
  Check for inconsistencies:
  
  Run transaction SLIN (Extended Program Check) to find inconsistencies related to the structure.
  Fix any issues found.
  
  
  
  Transport considerations:
  
  If the structure was changed in a development system and transported to quality/production, ensure that all dependent objects are also transported and activated in the target system.
  
  
  
  If the structure is part of a database table:
  
  Use SE14 to adjust the database table if necessary.
  Be cautious with database changes; incompatible changes might require data migration or table adjustments.
  
  
  
  
  Related Information:
  
  SAP Note: Check SAP Notes related to WS_TOOL864 for specific patches or updates.
  Transaction SE11: For structure maintenance and activation.
  Transaction SE14: For database utility and table adjustments.
  Report RS_PROGRAM_CHECK: For mass syntax and consistency checks.
  Report RS_ABAP_REORG: For mass recompilation of programs.
  SLIN: Extended syntax and consistency check tool.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Incompatible change to a structure definition in ABAP Dictionary.
  
  
  Effect
  Runtime inconsistency; dependent objects expect old structure version.
  
  
  Solution
  Reactivate structure, recompile dependent objects, run consistency checks, transport.
  
  
  Tools
  SE11, SE14, SE80, SE38, RS_PROGRAM_CHECK, RS_ABAP_REORG, SLIN
  
  
  Precautions
  Avoid incompatible changes in productive systems without proper testing and transport.
  
  
  
  
  If you need help with a specific structure or system, please provide the structure name or context for more tailored advice.