How To Fix OO358 - Instance relationship &1 &2: This relationship already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 358

• Message text: Instance relationship &1 &2: This relationship already exists

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO358 - Instance relationship &1 &2: This relationship already exists ?

  The SAP error message OO358 indicates that there is an attempt to create a relationship between two objects (instances) that already exists in the system. This error typically occurs in the context of Object-Oriented programming or when managing object relationships in SAP systems, such as in SAP CRM, SAP PLM, or similar modules.
  
  Cause:
  The error occurs when:
  
  You are trying to create a relationship between two instances (e.g., a business partner and a product) that has already been established in the system.
  There may be a duplicate entry in the database for the relationship you are trying to create.
  The system is enforcing a unique constraint on the relationship type you are trying to establish.
  
  
  Solution:
  To resolve the OO358 error, you can take the following steps:
  
  
  Check Existing Relationships:
  
  Use transaction codes like SWO1 or SWO2 to check the existing relationships between the instances. You can also use the relevant transaction for the specific object type you