How To Fix DMC_DTL199 - Could not load &1 as MT of subproject &2. &1 assigned to subproject &3

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_DTL - Messages for DMC data transfer layer

• Message number: 199

• Message text: Could not load &1 as MT of subproject &2. &1 assigned to subproject &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_DTL199 - Could not load &1 as MT of subproject &2. &1 assigned to subproject &3 ?

  The SAP error message DMC_DTL199 indicates an issue related to the loading of a specific object (denoted as &1) as a Master Template (MT) for a subproject (denoted as &2), while the same object is already assigned to another subproject (denoted as &3). This typically occurs in the context of SAP Data Migration Cockpit or similar data management tools within SAP.
  Cause:
  
  Object Assignment Conflict: The object you are trying to load as a Master Template for the specified subproject is already assigned to a different subproject. SAP does not allow the same object to be used as a Master Template in multiple subprojects simultaneously.
  Configuration Issues: There may be configuration issues in the project setup that are causing the system to misinterpret the assignment of the object.
  Data Integrity Issues: There could be underlying data integrity issues that prevent the system from recognizing the correct assignment of the object.
  
  Solution:
  
  Check Object Assignment: Verify the assignment of the object (&1) to the subprojects. You can do this by navigating to the relevant project or subproject in the SAP system and checking the configuration settings.
  Reassign or Remove Object: If you need to use the object as a Master Template for subproject &2, you will need to either:
  
  Remove the assignment of the object from subproject &3.
  Choose a different object that is not currently assigned to any other subproject.
  
  
  Review Project Configuration: Ensure that the project and subproject configurations are set up correctly and that there are no conflicting assignments.
  Consult Documentation: Refer to the SAP documentation or help resources for specific guidelines on managing Master Templates and subprojects.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.