How To Fix DMU128 - Relationship between &1 and &2 will be changed the next time you save

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 128

• Message text: Relationship between &1 and &2 will be changed the next time you save

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 DMU128 - Relationship between &1 and &2 will be changed the next time you save ?

  The SAP error message DMU128 indicates that there is a pending change in the relationship between two objects (denoted as &1 and &2) in the Data Management Utility (DMU) or a similar context. This message typically arises when you are working with object relationships in SAP, such as in the context of master data management, where you might be modifying relationships between different entities (e.g., materials, vendors, customers).
  Cause:
  The cause of this message is usually due to one of the following reasons:
  
  Pending Changes: You have made changes to the relationship between the two objects, but those changes have not yet been saved. The system is informing you that the relationship will be updated upon saving.
  Data Consistency: The system is ensuring that the changes you are making do not violate any data integrity rules or constraints.
  User Action: You may have manually altered the relationship in a way that requires confirmation or saving to take effect.
  
  Solution:
  To resolve the DMU128 error message, you can follow these steps:
  
  Save Changes: If you are satisfied with the changes you have made, simply save your work. This will apply the changes to the relationship between the two objects.
  Review Changes: If you are unsure about the changes, review the modifications you have made to ensure they are correct and do not violate any business rules.
  Undo Changes: If you do not want to keep the changes, you can cancel or undo the modifications before saving.
  Check for Dependencies: Ensure that there are no other dependencies or constraints that might affect the relationship you are trying to change.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you might be using specific transaction codes related to master data management, such as MM01 (Create Material), MM02 (Change Material), or others.
  Documentation: Refer to SAP documentation or help resources for more detailed information on managing object relationships and understanding the implications of changes.
  Support: If the issue persists or if you encounter additional errors, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  By following these steps, you should be able to address the DMU128 error message effectively.