How To Fix DU211 - Interface to function module & could not be saved

SAP Error Message - Details

• Message type: E = Error

• Message class: DU - Data transfer to SAP-EIS

• Message number: 211

• Message text: Interface to function module & could not be saved

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Communiation was terminated.

How to fix this error?

In system &v2&, check why program &v3& could not be saved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DU211 - Interface to function module & could not be saved ?

  The SAP error message DU211, which states "Interface to function module & could not be saved," typically indicates an issue with the interface definition of a function module in the SAP system. This error can arise due to various reasons, including inconsistencies in the function module's parameters, issues with the transport request, or problems with the underlying data.
  Causes:
  
  Inconsistent Parameters: The parameters defined in the function module may not match the expected types or structures.
  Transport Request Issues: If the function module is part of a transport request that has not been properly released or imported, it may lead to this error.
  Authorization Issues: Lack of proper authorizations to modify or save the function module can also trigger this error.
  Syntax Errors: There may be syntax errors in the ABAP code of the function module that prevent it from being saved.
  Database Lock: The function module might be locked by another user or process, preventing changes from being saved.
  
  Solutions:
  
  Check Parameters: Review the parameters of the function module to ensure they are correctly defined and match the expected data types.
  Release Transport Requests: If the function module is part of a transport request, ensure that the request is properly released and imported into the target system.
  Check Authorizations: Verify that you have the necessary authorizations to modify and save the function module.
  Debugging: Use the ABAP debugger to identify any syntax errors or issues in the code that may be causing the error.
  Unlock the Object: If the function module is locked, you may need to unlock it using transaction SM12 or contact your system administrator to resolve the lock.
  Check for Active Sessions: Ensure that no other users are currently editing the function module, as this can lead to conflicts.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE37 (Function Builder) to access and modify function modules, and SE80 (Object Navigator) for broader object management.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.