How To Fix /STTPEC/INT_MSG026 - RFC Interface Mismatch. Check notes.

SAP Error Message - Details

• Message type: E = Error

• Message class: /STTPEC/INT_MSG -

• Message number: 026

• Message text: RFC Interface Mismatch. Check notes.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STTPEC/INT_MSG026 - RFC Interface Mismatch. Check notes. ?

  The SAP error message /STTPEC/INT_MSG026 RFC Interface Mismatch. Check notes. typically indicates that there is a mismatch in the Remote Function Call (RFC) interface between the calling system and the target system. This can occur due to various reasons, such as changes in the function module, differences in the data structure, or version mismatches between systems.
  Causes:
  
  Function Module Changes: If the function module in the target system has been modified (e.g., parameters added, removed, or changed) and the calling system has not been updated accordingly, this error can occur.
  Version Mismatch: Different versions of the same function module in different systems can lead to interface mismatches.
  Transport Issues: If a transport request containing changes to a function module has not been imported into the target system, it can cause this error.
  Data Structure Changes: Changes in the data structures used in the RFC interface can also lead to mismatches.
  
  Solutions:
  
  Check Function Module: Verify that the function module being called exists in the target system and that its interface matches the calling system's expectations.
  Update RFC Destination: If there have been changes to the function module, ensure that the RFC destination in the calling system is updated to reflect these changes.
  Import Transport Requests: If the function module was recently changed, ensure that all relevant transport requests have been imported into the target system.
  Check SAP Notes: The error message suggests checking SAP Notes. Look for any relevant SAP Notes that may address this specific issue or provide guidance on how to resolve it.
  Recreate RFC Connection: In some cases, deleting and recreating the RFC connection can resolve the issue.
  Debugging: If the issue persists, consider debugging the RFC call to identify the exact point of failure and gather more information about the mismatch.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to RFC interface mismatches. You can use the SAP Support Launchpad or the SAP ONE Support Launchpad to find relevant notes.
  Transaction Codes: Use transaction codes like SE37 (Function Builder) to check the function module and its parameters.
  RFC Destination: Use transaction code SM59 to manage and check the RFC destinations.
  Version Management: If you have access to both systems, compare the versions of the function modules using transaction SE80 or SE37.
  
  By following these steps, you should be able to identify and resolve the RFC interface mismatch error in SAP.