How To Fix FOX0108 - Relationship '&1' and inverse relationship '&2': Obj. types do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: FOX0 - FOX Customizing

• Message number: 108

• Message text: Relationship '&1' and inverse relationship '&2': Obj. types do not match

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FOX0108 - Relationship '&1' and inverse relationship '&2': Obj. types do not match ?

  The SAP error message FOX0108 indicates that there is a mismatch between the object types in a relationship and its inverse relationship. This typically occurs in the context of SAP's Flexible Object Management (FOM) or when dealing with object relationships in the SAP system.
  Cause:
  The error arises when:
  
  Object Type Mismatch: The object types defined in the relationship do not correspond correctly. For example, if you have a relationship defined between a customer object and a vendor object, and the system expects both to be of the same type, this error will occur.
  Incorrect Configuration: The configuration of the relationship in the system may not be set up correctly, leading to inconsistencies.
  Data Integrity Issues: There may be issues with the data integrity where the relationships are not properly defined or maintained.
  
  Solution:
  To resolve the FOX0108 error, you can take the following steps:
  
  
  Check Relationship Configuration:
  
  Go to the configuration settings for the relationship in question. Ensure that both the relationship and its inverse relationship are correctly defined with matching object types.
  Use transaction codes like SWO1 (Business Object Builder) or SWD (Workflow Builder) to review and adjust the object types.
  
  
  
  Review Object Types:
  
  Verify the object types involved in the relationship. Ensure that they are compatible and correctly defined in the system.
  If necessary, consult the documentation or SAP support to understand the expected object types for the relationship.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the data to ensure that there are no orphaned relationships or incorrect entries that could be causing the issue.
  Use transaction codes like SE11 (Data Dictionary) to check the underlying tables for any inconsistencies.
  
  
  
  Adjust Relationships:
  
  If you find that the relationships are incorrectly defined, you may need to delete and recreate them with the correct object types.
  Ensure that any changes made are thoroughly tested in a development or test environment before applying them to production.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve the issue.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration and data, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SWO1, SWD, SE11, and SE80 for object management and configuration.
  Documentation: Review SAP documentation related to object relationships and Flexible Object Management for a deeper understanding of how relationships are structured.
  Testing: Always perform changes in a test environment first to avoid impacting production data.
  
  By following these steps, you should be able to identify and resolve the cause of the FOX0108 error in your SAP system.