How To Fix CMD_MLTAS020 - Object type code &1 is already assigned to assignment category &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CMD_MLTAS - Messages for multiple assignment function

• Message number: 020

• Message text: Object type code &1 is already assigned to assignment category &2

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 CMD_MLTAS020 - Object type code &1 is already assigned to assignment category &2 ?

  The SAP error message CMD_MLTAS020 indicates that an object type code is already assigned to a specific assignment category, which means that the system is preventing you from making a duplicate assignment. This error typically occurs in the context of managing assignments in SAP, particularly in areas like project management, resource management, or similar modules where object types and assignment categories are used.
  Cause:
  
  Duplicate Assignment: The object type code you are trying to assign is already linked to the specified assignment category.
  Configuration Issues: There may be a configuration in the system that restricts multiple assignments of the same object type to the same category.
  Data Integrity: The system is designed to maintain data integrity by preventing duplicate entries that could lead to confusion or errors in reporting.
  
  Solution:
  
  Check Existing Assignments: Review the current assignments for the object type code in question. You can do this by navigating to the relevant transaction or report that displays assignments.
  Modify or Remove Existing Assignment: If you find that the object type code is already assigned to the category, you may need to either modify the existing assignment or remove it before making a new assignment.
  Use a Different Assignment Category: If applicable, consider using a different assignment category that is not already associated with the object type code.
  Consult Documentation: Refer to SAP documentation or help files for specific guidance on managing assignments for the object type in question.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the module you are working in, you may use specific transaction codes to view or manage assignments (e.g., CJ20N for project management).
  Authorization: Ensure that you have the necessary authorizations to make changes to assignments in the system.
  Custom Development: If your organization has custom developments or enhancements, check if they might be affecting the assignment logic.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.