How To Fix DMU156 - Relationship between &1 and &2 is not allowed because it is recursive

DMU156 - Overview

• Message type: E = Error

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

• Message number: 156

• Message text: Relationship between &1 and &2 is not allowed because it is recursive

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU156 - Relationship between &1 and &2 is not allowed because it is recursive ?

  The SAP error message DMU156 indicates that there is a recursive relationship between two objects in the Data Management Utility (DMU). This typically occurs when an object is trying to reference itself directly or indirectly through another object, which is not allowed in the system.
  
  Cause:
  The error arises when:
  
  You are trying to create a relationship between two objects (e.g., master data, organizational units, etc.) where one object is a parent of the other, and the child object is also trying to reference the parent object, creating a loop.
  The relationship structure violates the rules of hierarchy or relationships defined in the system.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Relationships: Check the relationships between the objects involved. Ensure that there is no circular reference where an object is indirectly referencing itself.
  
  
  Modify Relationships: If you find a recursive relationship, you will need to modify the relationships to eliminate the recursion. This