How To Fix FR626 - Function module &1: Interface is not compatible

FR626 - Overview

• Message type: E = Error

• Message class: FR - Messages for FI Reporting

• Message number: 626

• Message text: Function module &1: Interface is not compatible

What causes this issue?

You have specified that you would like to use the function module <ZH>
&V1&</> to select the selection view for the line item browser. However,
the interface for function module <ZH>&V1&</> is not one of the
predefined interfaces.
You specified that you want to use function module <ZH>&V1&</> to
determine the selection view to be used in the context of the line item
browser. The interface of function module <ZH>&V1&</> does not meet the
requirements.

System Response

Warning: In its current version, function module <ZH>&V1&</> cannot be
used. Instead, the system uses the default selection view <ZH>&V2&</>.
Warning. The function module <ZH>&V1&</> cannot be used in its
current version. Instead the standard selection view <ZH>&V2&</>
will be used.

How to fix this error?

Specify a function module that has a compatible interface. You can copy
function module <ZH>FAGL_HDB_CUST_BRW_SELVIEW_EXIT</> and adjust the
implementation to suit your requirements.
Specify a function module with a compatible interface. You may want to
copy function module <ZH>FAGL_HDB_CUST_BRW_SELVIEW_EXIT</> and adjust
the implementation according to your requirements.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

FR626 - Details

• The SAP error message FR626 indicates that there is an issue with the compatibility of the interface of a function module. This typically occurs when the function module being called does not match the expected interface in terms of parameters, types, or structure.
  Causes:
  
  Mismatch in Function Module Signature: The function module being called has a different signature (parameters, types, or order) than what is expected.
  Changes in Function Module: If the function module was recently modified (e.g., parameters added, removed, or changed), and the calling program has not been updated accordingly.
  Versioning Issues: If there are different versions of the function module in different environments (e.g., development vs. production), this can lead to compatibility issues.
  Transport Issues: If the function module was transported from one system to another without proper synchronization of dependent objects.
  
  Solutions:
  
  Check Function Module Definition: Verify the definition of the function module in transaction SE37 or SE80. Ensure that the parameters match