How To Fix MCEX194 - Structures have changed (sy-subrc=&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 194

• Message text: Structures have changed (sy-subrc=&1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX194 - Structures have changed (sy-subrc=&1) ?

  The SAP error message MCEX194, which states "Structures have changed (sy-subrc=&1)," typically occurs in the context of SAP's Material Management (MM) or Logistics modules, particularly when dealing with data structures that have been modified or are inconsistent with the expected format.
  Cause:
  
  
  Data Structure Changes: The error usually indicates that the underlying data structures (like tables or fields) have been altered. This can happen due to:
  
  Changes in the database schema (e.g., adding or removing fields).
  Updates to the SAP system that modify standard structures.
  Custom developments that affect the data model.
  
  
  
  Inconsistent Data: If the data being processed does not match the expected structure, it can lead to this error. This might occur if:
  
  There are inconsistencies in the data being pulled from the database.
  The data has not been properly updated after a change in the structure.
  
  
  
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the transport did not include all necessary objects, it could lead to this error.
  
  
  Solution:
  
  
  Check for Recent Changes: Review any recent changes made to the data structures in the system. This includes checking for:
  
  Custom developments.
  Recent transports that may have altered the structure.
  
  
  
  Consistency Check: Run consistency checks on the affected tables or structures to ensure that they are in sync with the expected definitions. This can often be done using transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility).
  
  
  Rebuild or Adjust Structures: If the structure has changed, you may need to adjust your custom code or reports to align with the new structure. This might involve:
  
  Modifying ABAP programs to accommodate new fields or changes.
  Updating any custom tables or structures that depend on the modified structures.
  
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. Sometimes, SAP provides patches or recommendations for known issues.
  
  
  Debugging: If the error persists, consider debugging the program or transaction that triggers the error. This can help identify the exact point of failure and the specific data causing the issue.
  
  
  Consult Documentation: Review the documentation for the specific module or transaction you are working with to understand any recent changes or updates that may have affected the data structures.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) for debugging and checking structures.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  SAP Support: If the issue is complex and cannot be resolved internally, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and resolve the MCEX194 error effectively.