How To Fix COM_IL005 - Another relationship with the same source is not possible

COM_IL005 - Overview

• Message type: E = Error

• Message class: COM_IL - Object Relationships (Interlinkages)

• Message number: 005

• Message text: Another relationship with the same source is not possible

What causes this issue?

The relationship cannot be created because the cardinality of the
relationship type does not allow another relationship with the same
source.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

COM_IL005 - Details

• The SAP error message COM_IL005 ("Another relationship with the same source is not possible") typically occurs in the context of Integrated Logistics (IL) or when dealing with the configuration of relationships in the SAP system, particularly in the context of the SAP Advanced Planning and Optimization (APO) module or similar areas where relationships between objects (like materials, resources, etc.) are defined.
  
  Cause:
  This error usually arises when you attempt to create a new relationship (e.g., between a material and a resource) that conflicts with an existing relationship. The system does not allow multiple relationships of the same type to be defined for the same source object. For example, if you already have a relationship defined between a specific material and a resource, trying to create another relationship of the same type for that material will trigger this error.
  
  Solution:
  To resolve the COM_IL005 error, you can take the following steps:
  
  
  Check Existing Relationships:
  
  Navigate to the