How To Fix FKKMA128 - Function module &1 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKMA - Messages for Master Agreement

• Message number: 128

• Message text: Function module &1 is not allowed

What causes this issue?

The interface must correspond to the interface of function module
FKK_CHECK_ITEM_FOR_FILTER.

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?

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 FKKMA128 - Function module &1 is not allowed ?

  The SAP error message FKKMA128 indicates that a specific function module is not allowed to be executed in the context in which it is being called. This error typically arises in the context of the Contract Accounts Receivable and Payable (FI-CA) module, which is part of SAP's Financials suite.
  Cause:
  
  Function Module Restrictions: The function module being called may have restrictions based on the configuration or the specific business process being executed. Certain function modules are designed to be used only in specific scenarios or with certain types of data.
  Authorization Issues: The user executing the function may not have the necessary authorizations to call the function module.
  Incorrect Configuration: There may be configuration settings in the system that prevent the execution of the function module in the current context.
  
  Solution:
  
  Check Function Module: Identify the specific function module that is causing the error (indicated by &1 in the error message). Review the documentation for that function module to understand its intended use and any restrictions.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. This can be done by checking the user's roles and authorizations in the SAP system.
  Configuration Review: Check the configuration settings related to the FI-CA module. Ensure that the settings allow for the execution of the function module in the current context.
  Debugging: If you have access to debugging tools, you can set breakpoints in the code to see where the error is being triggered and gather more context about the issue.
  Consult Documentation: Refer to SAP Notes or the SAP Help Portal for any known issues or additional guidance related to the specific function module and error message.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may address this specific error message or provide patches or updates that resolve the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes in the FI-CA module that may help in troubleshooting or configuring the system.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP Basis or technical team for further investigation.