How To Fix WUF01022 - Table type &1 incompatible with structure type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WUF01 -

• Message number: 022

• Message text: Table type &1 incompatible with structure type &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WUF01022 - Table type &1 incompatible with structure type &2 ?

  The SAP error message WUF01022, which states "Table type &1 incompatible with structure type &2," typically occurs when there is a mismatch between the expected table type and the actual structure type being used in a function module or method. This error is often encountered in the context of ABAP programming, particularly when dealing with table parameters in function modules or methods.
  Cause:
  
  Mismatched Data Types: The table type defined in the function module or method does not match the structure type of the data being passed to it. For example, if a function module expects a table of a certain structure but receives a table of a different structure, this error will occur.
  Incorrect Declaration: The table type may have been incorrectly declared or defined in the ABAP Dictionary (SE11).
  Changes in Data Dictionary: If the structure of the table type or the structure type has been changed after the function module was created, it may lead to incompatibility.
  
  Solution:
  
  Check Data Types: Verify that the table type being passed to the function module or method matches the expected structure type. You can do this by checking the definitions in the ABAP Dictionary (SE11).
  Adjust Function Module/Method: If you have control over the function module or method, ensure that the expected table type matches the structure type you are passing. You may need to modify the function module or method signature.
  Use Compatible Structures: If you are using a custom structure, ensure that it is compatible with the expected structure. You may need to create a new structure that matches the expected type.
  Recompile: If changes have been made to the data dictionary, ensure that you recompile the function module or method to reflect those changes.
  Check for Transport Issues: If the error occurs after a transport, ensure that all related objects (like structures and table types) have been transported correctly.
  
  Related Information:
  
  Transaction Codes: Use SE11 to check the definitions of the table types and structures.
  Debugging: You can use the debugger to trace the point where the error occurs and inspect the data being passed to the function module or method.
  Documentation: Review the documentation for the function module or method to understand the expected input parameters and their types.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.