How To Fix COM_DML_CUST091 - Hierarchy relationship type cannot refer to other object types

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_DML_CUST - MDF Messages

• Message number: 091

• Message text: Hierarchy relationship type cannot refer to other object types

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 COM_DML_CUST091 - Hierarchy relationship type cannot refer to other object types ?

  The SAP error message COM_DML_CUST091 indicates that there is an issue with the hierarchy relationship type in the context of the SAP system, specifically within the context of the SAP Customer Relationship Management (CRM) or SAP Advanced Planning and Optimization (APO) modules. This error typically arises when a hierarchy relationship is incorrectly defined, referring to an object type that is not allowed.
  Cause:
  The error occurs when:
  
  A hierarchy relationship type is trying to reference an object type that is not compatible or not allowed within the defined hierarchy.
  The configuration of the hierarchy relationship is incorrect, possibly due to a misconfiguration in the customizing settings or an attempt to create a relationship that violates the defined rules of the hierarchy.
  
  Solution:
  To resolve the COM_DML_CUST091 error, you can follow these steps:
  
  
  Check Hierarchy Configuration:
  
  Go to the customizing settings in SAP (transaction code SPRO).
  Navigate to the relevant area where hierarchy relationships are defined (e.g., under CRM or APO).
  Review the configuration of the hierarchy relationship types to ensure that they are correctly defined and that the object types they refer to are valid.
  
  
  
  Validate Object Types:
  
  Ensure that the object types you are trying to relate in the hierarchy are compatible. Refer to the documentation or configuration guides for the specific module you are working with to understand which object types can be related.
  
  
  
  Adjust Relationship Types:
  
  If you find that the relationship type is incorrectly set up, you may need to adjust it to refer to the correct object types. This may involve creating new relationship types or modifying existing ones.
  
  
  
  Test Changes:
  
  After making the necessary adjustments, test the changes to ensure that the error no longer occurs. You can do this by attempting to create or modify the hierarchy relationship again.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct configuration, consult the SAP Help documentation or reach out to SAP support for guidance specific to your version and configuration.
  
  
  
  Check for Notes and Patches:
  
  Sometimes, SAP releases notes or patches that address specific issues. Check the SAP Support Portal for any relevant notes related to this error message.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO for configuration, SE11 for data dictionary, or SE80 for object navigation.
  SAP Notes: Look for SAP Notes that might provide additional insights or solutions related to this error.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.