How To Fix MI_MGMT149 - You cannot assign two parameter sets of the same type

SAP Error Message - Details

• Message type: E = Error

• Message class: MI_MGMT - MI: Device Management

• Message number: 149

• Message text: You cannot assign two parameter sets of the same type

Self-Explanatory Message

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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 MI_MGMT149 - You cannot assign two parameter sets of the same type ?

  The SAP error message MI_MGMT149, which states "You cannot assign two parameter sets of the same type," typically occurs in the context of managing master data or configuration settings in SAP, particularly in the area of Material Management (MM) or similar modules where parameter sets are used.
  Cause:
  This error usually arises when there is an attempt to assign multiple parameter sets of the same type to a single entity (like a material, vendor, or customer). In SAP, parameter sets are used to define specific configurations or settings, and each type of parameter set is expected to be unique for a given entity. The system does not allow duplication of parameter sets of the same type to avoid conflicts and ensure data integrity.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Parameter Sets: Check the parameter sets that are currently assigned to the entity in question. You can do this by navigating to the relevant configuration or master data screen in SAP.
  
  
  Review Assignments: Look for any existing assignments of parameter sets of the same type. You may need to check the configuration settings or master data records to see which parameter sets are already in use.
  
  
  Remove Duplicates: If you find that there are indeed two parameter sets of the same type assigned, you will need to remove one of them. Decide which parameter set is necessary and delete or deactivate the other.
  
  
  Reassign if Necessary: After resolving the duplication, you can reassign the necessary parameter set to the entity.
  
  
  Test the Changes: After making the changes, test the functionality to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  Related Information:
  
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to view or edit parameter sets. Common transaction codes include MM01 (Create Material), MM02 (Change Material), or SPRO (Customizing).
  
  
  Documentation: Refer to SAP Help documentation or your organization's internal documentation for specific guidelines on managing parameter sets in your SAP environment.
  
  
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to parameter sets. If you do not have the required access, you may need to contact your SAP administrator.
  
  
  Consulting SAP Notes: If the issue persists or if you need more detailed guidance, consider searching for relevant SAP Notes in the SAP Support Portal that may address this specific error message.
  
  
  By following these steps, you should be able to resolve the MI_MGMT149 error and ensure that your parameter set assignments are correctly configured.