How To Fix CMMD089 - Article assignment is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: CMMD -

• Message number: 089

• Message text: Article assignment is not unique

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 CMMD089 - Article assignment is not unique ?

  The SAP error message CMMD089, which states "Article assignment is not unique," typically occurs in the context of SAP's Retail or Merchandise Management modules. This error indicates that there is an issue with the assignment of articles (products) to a specific location or sales area, where the system finds multiple entries that conflict with the uniqueness requirement.
  Cause:
  
  Duplicate Assignments: The most common cause is that the same article is assigned to the same location or sales area multiple times, leading to ambiguity.
  Incorrect Data Entry: There may be errors in data entry, such as typos or incorrect configurations that result in duplicate records.
  Master Data Issues: Problems with the master data setup, such as incorrect article master records or location master records, can lead to this error.
  Configuration Issues: In some cases, the configuration settings in the system may not be set up correctly, leading to conflicts in article assignments.
  
  Solution:
  
  Check for Duplicates: Review the article assignments in the system to identify any duplicates. You can do this by navigating to the relevant transaction codes (e.g., MM02 for material master) and checking the assignments.
  Correct Data: If duplicates are found, correct the data by removing or consolidating the duplicate entries. Ensure that each article is assigned uniquely to a location or sales area.
  Review Master Data: Ensure that the master data for articles and locations is correctly set up. This includes checking for any inconsistencies or errors in the master records.
  Use Transaction Codes: Utilize transaction codes like MM03 (Display Material), MM02 (Change Material), or MC.9 (Display Article Assignment) to analyze and modify the assignments as needed.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on managing article assignments in your version of SAP.
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing articles and locations, such as MM01, MM02, MM03, and MC.9.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Permissions: Ensure that the user has the necessary permissions to make changes to article assignments.
  Testing Changes: After making changes, test the system to ensure that the error no longer occurs and that the article assignments are functioning as expected.
  
  By following these steps, you should be able to resolve the CMMD089 error and ensure that article assignments are unique within your SAP system.