How To Fix /PLMI/PPECMP452 - &1 &2 still assigned to &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPECMP -

• Message number: 452

• Message text: &1 &2 still assigned to &3 &4

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 /PLMI/PPECMP452 - &1 &2 still assigned to &3 &4 ?

  The SAP error message /PLMI/PPECMP452 &1 &2 still assigned to &3 &4 typically indicates that there is an issue with the assignment of a particular object (like a project, task, or resource) in the Project Management (PM) or Project System (PS) module. This error suggests that the object you are trying to delete or change is still linked to another object, which prevents the action from being completed.
  Cause:
  
  Active Assignments: The object you are trying to modify or delete is still assigned to another entity (like a project, work package, or resource).
  Dependencies: There may be dependencies or relationships that have not been resolved, such as tasks that are still linked to the object.
  Incomplete Deletion: If you previously attempted to delete or change the object, it may not have been fully processed, leaving residual assignments.
  
  Solution:
  
  Check Assignments: Use transaction codes like CJ20N (Project Builder) or CJ03 (Display Project) to check where the object is still assigned. Look for any active assignments that need to be removed.
  Remove Dependencies: If the object is linked to other objects, you will need to remove those links first. This may involve deleting or reassigning tasks, resources, or other related entities.
  Use Transaction Codes: 
  
  Use CJ02 (Change Project) to modify the project and check for any assignments.
  Use CJ04 (Change Work Breakdown Structure) to check the WBS elements.
  
  
  Consult Documentation: Review the SAP documentation or help files related to the specific module you are working with for more detailed guidance on handling assignments.
  Check for Locks: Ensure that there are no locks on the object that might be preventing changes. You can check this using transaction SM12.
  Contact Support: If you are unable to resolve the issue, 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 for project management in SAP, such as CJ01, CJ02, CJ03, CJ20N, etc.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to the objects in question.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.