How To Fix HRSEN00021 - Function module &1 is not implemented

SAP Error Message - Details

• Message type: E = Error

• Message class: HRSEN00 - Calculation of Time Specifications

• Message number: 021

• Message text: Function module &1 is not implemented

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message HRSEN00021 - Function module &1 is not implemented ?

  The SAP error message HRSEN00021 indicates that a specific function module (FM) is not implemented in the system. This error typically arises when a program or transaction attempts to call a function module that either does not exist or has not been implemented in the current SAP environment.
  Cause:
  
  Missing Function Module: The function module being called is not available in the system. This could be due to a missing transport or an incomplete installation of a component.
  Incorrect Configuration: The system might be configured incorrectly, leading to calls to function modules that are not applicable to the current setup.
  Version Mismatch: The function module may exist in a different version of SAP but not in the version you are currently using.
  Custom Development: If the function module is a custom development, it may not have been created or activated.
  
  Solution:
  
  
  Check Function Module Existence:
  
  Use transaction SE37 to check if the function module exists in the system. If it does not exist, you may need to implement it or check if it is part of a specific SAP component that needs to be installed.
  
  
  
  Review Transport Requests:
  
  If the function module is part of a transport request, ensure that the transport has been imported successfully into the system.
  
  
  
  Consult Documentation:
  
  Check the SAP documentation or release notes for the specific module or component you are working with to see if there are any prerequisites or additional steps required.
  
  
  
  Check for Custom Code:
  
  If the function module is custom, ensure that it has been developed and activated properly. You may need to contact the developer or the team responsible for custom developments.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. Provide them with the error message and any relevant details about the context in which the error occurred.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE37: Function Module Maintenance
  SE80: Object Navigator (to check for related objects)
  SE11: Data Dictionary (to check for related tables or structures)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide guidance on the function module in question.
  
  
  Debugging: If you have access to debugging tools, you can set breakpoints to see where the function module is being called and gather more context about the error.
  
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.