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

HRSEN00021 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

HRSEN00021 - Details

• 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.