How To Fix OO222 - Friends relationship &1 &2: Invalid type category (only classes allowed)


SAP Error Message - Details

  • Message type: E = Error

  • Message class: OO - Class Builder/API

  • Message number: 222

  • Message text: Friends relationship &1 &2: Invalid type category (only classes allowed)

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  • 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.

    Unfortunately, there isn't any extra information in this error notice.



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Smart SAP Assistant

  • What is the cause and solution for SAP error message OO222 - Friends relationship &1 &2: Invalid type category (only classes allowed) ?
    The SAP error message OO222 indicates that there is an issue with the relationship type in the Object-Oriented (OO) programming context, specifically when dealing with classes and their relationships. The message states that the type category is invalid and that only classes are allowed for the specified relationship.
    
    Cause: The error typically arises in the following scenarios: Incorrect Relationship Definition: You may be trying to define a relationship between objects that are not classes. For example, if you are trying to create a relationship between a class and a data element or a structure, this error will occur. Misconfiguration in Class Hierarchy: If the class hierarchy is not set up correctly, or if there are references to non-class objects in the relationship definitions, this can lead to the OO222 error. Typographical Errors: Sometimes, simple typographical errors in the class names or relationship definitions can lead to this error.
    Solution: To resolve the OO222 error, you can take

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