How To Fix 5B021 - Function module & is not in group RHMC

SAP Error Message - Details

• Message type: E = Error

• Message class: 5B -

• Message number: 021

• Message text: Function module & is not in group RHMC

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5B021 - Function module & is not in group RHMC ?

  The SAP error message "5B021 Function module & is not in group RHMC" typically indicates that a function module is being called or accessed, but it is not part of the specified function group (in this case, RHMC). This can occur in various scenarios, particularly when dealing with custom developments or enhancements in SAP.
  Cause:
  
  Function Module Not Assigned: The function module you are trying to use is not assigned to the RHMC function group. This could happen if the function module was created in a different function group or if it was deleted or not properly transported.
  Authorization Issues: There may be authorization issues preventing access to the function module.
  Development Environment Issues: If you are working in a development environment, the function module may not have been activated or may not exist in the system.
  
  Solution:
  
  
  Check Function Module Assignment:
  
  Go to transaction SE37 (Function Builder) and check the function module in question.
  Verify if it is assigned to the RHMC function group. If not, you may need to either move it to the correct function group or modify your code to call the correct function module.
  
  
  
  Check for Existence:
  
  Ensure that the function module exists in the system. If it does not, you may need to create it or transport it from another system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the function module. You can check this in transaction SU53 after the error occurs.
  
  
  
  Transport Issues:
  
  If the function module was recently transported, ensure that the transport was successful and that all necessary objects were included.
  
  
  
  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:
  
  Check SAP Notes or documentation related to the specific function module or the RHMC function group for any known issues or additional guidance.
  
  
  
  Related Information:
  
  Function Groups: In SAP, function groups are used to group related function modules. Each function module belongs to a specific function group, and this structure is important for organization and access control.
  SAP Notes: Always check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional context.
  Development Guidelines: If you are developing custom function modules, ensure that you follow best practices for naming conventions and group assignments to avoid such issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further assistance.