How To Fix FL022 - The structure of a parameter has been changed

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 022

• Message text: The structure of a parameter has been changed

What causes this issue?

The structure of a parameter has been changed. This can make the test
data incompatible.

System Response

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

How to fix this error?

Test data may not be able to be read, or individual test data records
may be semantically invalidated by the change.
Check whether you need to delete existing test data records.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL022 - The structure of a parameter has been changed ?

  The SAP error message FL022, which states "The structure of a parameter has been changed," typically occurs in the context of function modules, BAPIs, or other interfaces where the expected structure of a parameter has been modified. This can happen due to changes in the underlying data model, such as adding or removing fields in a structure or changing the data types of existing fields.
  Causes:
  
  Changes in Data Structures: If a function module or BAPI has been modified to include new fields or remove existing ones, and the calling program has not been updated accordingly, this error can occur.
  Version Mismatch: If the calling program is using an outdated version of a function module or BAPI that does not match the current definition in the system.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production) and the calling program was not updated to reflect these changes.
  
  Solutions:
  
  Update Calling Programs: Review the calling program or report that is invoking the function module or BAPI. Ensure that it is updated to match the new structure of the parameters.
  Check for Version Compatibility: Verify that the version of the function module or BAPI being called is compatible with the version expected by the calling program. If necessary, update the calling program to use the correct version.
  Review Transport Requests: If the error occurred after a transport, check the transport logs to ensure that all necessary objects were transported correctly and that there are no inconsistencies between the systems.
  Consult Documentation: Review the documentation for the function module or BAPI to understand the changes made to the parameter structure and adjust the calling program accordingly.
  Debugging: Use the SAP debugger to trace the execution of the program and identify where the mismatch occurs. This can help pinpoint the exact parameter that is causing the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function module or BAPI you are using.
  Transaction Codes: Use transaction codes like SE37 (Function Builder) or SE80 (Object Navigator) to examine the function module or BAPI and its parameters.
  Change Logs: If available, review change logs or documentation related to the function module or BAPI to understand what changes were made and when.
  
  By following these steps, you should be able to identify the cause of the FL022 error and implement a solution to resolve it.