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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message COM_IL005 - Another relationship with the same source is not possible ?

  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 relevant transaction (e.g., transaction codes like /SAPAPO/IL01 for Integrated Logistics) and check the existing relationships for the source object (e.g., material or resource).
  Identify if there is already a relationship defined that conflicts with the one you are trying to create.
  
  
  
  Modify or Delete Existing Relationships:
  
  If you find an existing relationship that is causing the conflict, you can either modify it (if applicable) or delete it if it is no longer needed.
  Ensure that the relationship you want to create is necessary and does not duplicate existing configurations.
  
  
  
  Use Different Relationship Types:
  
  If your business process requires multiple relationships, consider using different types of relationships if applicable. This may involve re-evaluating the business logic and how relationships are structured.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific module you are working with. This can provide insights into how relationships are managed and any constraints that may apply.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for further assistance. They may have additional tools or insights to help troubleshoot the problem.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing relationships in your specific SAP module.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide patches or additional guidance.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.