How To Fix DMU151 - Relationship type requries compatability to class hierarchy

DMU151 - Overview

• Message type: E = Error

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

• Message number: 151

• Message text: Relationship type requries compatability to class hierarchy

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMU151 - Relationship type requries compatability to class hierarchy ?

  The SAP error message DMU151, which states "Relationship type requires compatibility to class hierarchy," typically occurs in the context of the Data Management Utility (DMU) or when working with classification and relationships in SAP. This error indicates that there is an issue with the relationship type you are trying to establish between classes or objects in the classification system.
  
  Cause:
  
  Incompatible Relationship Type: The relationship type you are trying to use is not compatible with the class hierarchy. This could be due to the relationship type not being defined correctly or not being allowed for the specific classes involved.
  Class Hierarchy Issues: The classes you are trying to relate may not be compatible in terms of their hierarchy or classification attributes.
  Missing Configuration: The relationship type may not be properly configured in the system, or the necessary settings for the class hierarchy may be missing.
  
  
  Solution:
  
  
  Check Relationship Type Configuration:
  
  Go to the configuration settings for relationship