How To Fix MN134 - ***** FUNCTION GROUPS WN01/WN02 ******

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 134

• Message text: ***** FUNCTION GROUPS WN01/WN02 ******

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MN134 - ***** FUNCTION GROUPS WN01/WN02 ****** ?

  The SAP error message MN134, which states "* FUNCTION GROUPS WN01/WN02 **", typically indicates an issue related to function groups in the SAP system. This error can occur in various contexts, often when there is a problem with the function group or its components.
  Cause:
  
  Missing Function Group: The function groups WN01 or WN02 may not exist in the system.
  Transport Issues: If the function groups were recently transported from another system, there may have been issues during the transport process.
  Authorization Issues: The user may not have the necessary authorizations to access the function groups.
  Corrupted Objects: The function groups or their components may be corrupted or not properly activated.
  Development Environment Issues: If you are in a development environment, the function groups may not be properly defined or activated.
  
  Solution:
  
  Check Existence: Verify that the function groups WN01 and WN02 exist in the system. You can do this by using transaction SE80 (Object Navigator) or SE37 (Function Builder).
  Transport Check: If the function groups were transported, check the transport logs for any errors. You may need to re-transport the objects if there were issues.
  Authorization Check: Ensure that the user has the necessary authorizations to access the function groups. You can check this in transaction SU53 or by consulting with your security team.
  Activation: If the function groups exist but are not activated, activate them using transaction SE80 or SE37.
  Check for Corruption: If you suspect corruption, you may need to restore the function groups from a backup or re-create them if necessary.
  Consult Documentation: Check SAP Notes or documentation related to the specific function groups for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to function groups WN01 and WN02.
  Transaction Codes: Familiarize yourself with transaction codes like SE80 (Object Navigator), SE37 (Function Builder), and SE11 (Data Dictionary) for further investigation.
  System Logs: Check system logs (transaction SM21) for any related error messages that might provide additional context.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.