Message type: E = Error
Message class:  COM_CATEGORY - Category 
Message number: 012
Message text: You are not authorized to change categories
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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The SAP error message COM_CATEGORY012 indicates that a user is not authorized to change categories in the system. This typically occurs in the context of SAP's classification system, where users may attempt to modify or assign categories to materials, documents, or other objects.
Cause: Authorization Issues: The primary cause of this error is that the user does not have the necessary authorization to change categories. This could be due to missing roles or permissions in the user's profile. Configuration Settings: There may be specific configuration settings in the SAP system that restrict category changes based on user roles or organizational units. Object Locking: The object (e.g., material or document) may be locked for editing by another user or process, preventing changes to its categories.
Solution: Check User Authorizations: Review the user's roles and authorizations in the SAP system. This can be done using transaction code SU53 to analyze the last authorization check or PFCG to manage roles. Ensure
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