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 are working with.
  Verify if the relationship you are trying to create already exists.
  
  
  
  Modify or Delete Existing Relationships:
  
  If the relationship already exists and you need to change it, consider modifying the existing relationship instead of creating a new one.
  If the existing relationship is incorrect or needs to be removed, delete it before attempting to create a new one.
  
  
  
  Review Data Entry:
  
  Ensure that the data you are entering is correct and does not inadvertently create a duplicate relationship.
  Check for any typos or incorrect object IDs that might lead to confusion.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific object types and relationships you are working with. This can provide insights into the expected behavior and constraints.
  
  
  
  Check for Custom Code:
  
  If there is custom code involved in the creation of relationships, review it to ensure it handles existing relationships appropriately.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing object relationships, such as SWO1, SWO2, or specific transaction codes for the module you are working in.
  SAP Notes: Check SAP Notes for any known issues or updates related to the error message OO358.
  Documentation: Review the SAP Help Portal for detailed information on object relationships and constraints in the specific module you are using.
  
  By following these steps, you should be able to identify the cause of the OO358 error and implement a solution to resolve it.