How To Fix /CUM/MSG420 - Compatible unit design & does not exist. Enter a valid design

SAP Error Message - Details

• Message type: E = Error

• Message class: /CUM/MSG -

• Message number: 420

• Message text: Compatible unit design & does not exist. Enter a valid design

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 /CUM/MSG420 - Compatible unit design & does not exist. Enter a valid design ?

  The SAP error message /CUM/MSG420 Compatible unit design & does not exist. Enter a valid design typically occurs in the context of SAP's Plant Maintenance (PM) or similar modules where compatible unit designs are used for maintenance planning and execution. This error indicates that the system cannot find the specified compatible unit design in the database.
  Cause:
  
  Non-Existent Design: The compatible unit design you are trying to use has not been created or does not exist in the system.
  Incorrect Input: There may be a typo or incorrect entry in the compatible unit design field.
  Authorization Issues: The user may not have the necessary permissions to view or access the compatible unit design.
  Data Deletion: The design may have been deleted or archived, making it unavailable for use.
  Configuration Issues: There may be issues with the configuration settings in the system that prevent the design from being recognized.
  
  Solution:
  
  Verify the Design: Check if the compatible unit design you are trying to use actually exists in the system. You can do this by navigating to the relevant transaction or table where compatible unit designs are stored.
  Correct Input: Ensure that you have entered the correct compatible unit design. Double-check for any typos or formatting issues.
  Check Authorizations: Ensure that your user account has the necessary permissions to access the compatible unit design. If not, contact your system administrator to grant the required access.
  Create or Restore Design: If the design does not exist, you may need to create a new compatible unit design or restore it if it was deleted. This typically involves using the relevant transaction codes in SAP to create or manage compatible unit designs.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to create or manage compatible unit designs.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CUM1 (for creating compatible unit designs) or CUM2 (for changing them).
  SAP Notes: Check SAP Notes for any known issues or patches related to compatible unit designs.
  Training: If you are new to SAP PM or the specific module you are working with, consider undergoing training to better understand how compatible unit designs work.
  
  By following these steps, you should be able to resolve the error and successfully work with compatible unit designs in SAP.