How To Fix C$731 - The reference object class type &, class & is not defined

C$731 - Overview

• Message type: E = Error

• Message class: C$ -

• Message number: 731

• Message text: The reference object class type &, class & is not defined

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 C$731 - The reference object class type &, class & is not defined ?

  The SAP error message C$731 indicates that there is an issue with a reference object class type that is not defined in the system. This error typically occurs in the context of classification and object management within SAP, particularly when dealing with classification systems, material management, or similar modules.
  
  Cause:
  
  Undefined Class Type: The class type specified in the error message is not defined in the system. This could happen if the class type was deleted or never created.
  Incorrect Configuration: There may be a configuration issue where the class type is not properly set up in the system.
  Transport Issues: If the class type was supposed to be transported from another system (like a development or quality system) and the transport did not occur successfully, it may lead to this error.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the class type, leading to the perception that it is