How To Fix CRM_SSC019 - Function module &1 does not conform to the interface

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_SSC - Screen Sequence Control - CRM Transaction

• Message number: 019

• Message text: Function module &1 does not conform to the interface

What causes this issue?

The function module &V1& does not meet the conditions of the screen
sequence control or its import/export structures.

System Response

It is possible that this configuration does not produce the desired
results.

How to fix this error?

To resolve this problem, inform your System Administration.

Procedure for System Administrators

Function modules which are to be used for selecting screen control
data, must have an import structure with the name IS_GEN_COM from
category CRMT_SSC_FU_EXP_COM, as well as an export structure with the
name ES_GEN_COM from category CRMT_SSC_FU_IMP_COM.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_SSC019 - Function module &1 does not conform to the interface ?

  The SAP error message CRM_SSC019 indicates that a function module does not conform to the expected interface. This typically occurs in the context of SAP CRM (Customer Relationship Management) when a function module is called, but the parameters or the structure of the function module do not match what is expected by the calling program or the interface definition.
  Causes:
  
  Mismatch in Parameters: The function module may have been modified, and the parameters (input/output) do not match the expected signature.
  Versioning Issues: If the function module has been updated or changed in a newer version of the system, the calling program may still be using an older version of the interface.
  Custom Development: If the function module is a custom development, there may have been changes made to it that were not reflected in the calling program.
  Transport Issues: If the function module was transported from one system to another (e.g., from development to production), it may not have been properly updated or may have dependencies that are not met.
  
  Solutions:
  
  Check Function Module Definition: Go to transaction SE37 (Function Builder) and check the definition of the function module. Ensure that the parameters match what is expected by the calling program.
  Update Calling Program: If the function module has changed, update the calling program to match the new interface. This may involve modifying the code to accommodate new parameters or changes in data types.
  Check for Transport Issues: If the function module was recently transported, ensure that all related objects and dependencies were also transported correctly.
  Debugging: Use the debugger to trace the execution and identify where the mismatch occurs. This can help pinpoint the exact parameters that are causing the issue.
  Consult Documentation: Review any documentation related to the function module to understand its expected usage and any recent changes that may have been made.
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SE80 (Object Navigator), SE11 (Data Dictionary) can be useful for checking the function module and related objects.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function module or error message.
  Custom Code Review: If the function module is custom, review the development documentation and change logs to understand recent modifications.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.