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

DU211 - Overview

• 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.

DU211 - Details

• 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