Message type: E = Error
Message class: COM_CATEGORY - Category
Message number: 018
Message text: Enter a hierarchy to which category &1 belongs
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.
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The SAP error message COM_CATEGORY018 indicates that a hierarchy must be specified for a category in the context of SAP's classification system, particularly in the area of Product Lifecycle Management (PLM) or similar modules where categories and hierarchies are used to organize data.
Cause: This error typically occurs when: A category is being created or modified without an associated hierarchy. The system requires that every category must belong to a specific hierarchy for proper classification and organization. The hierarchy that the category is supposed to belong to has not been defined or is not correctly linked.
Solution: To resolve the COM_CATEGORY018 error, you can follow these steps: Check Hierarchy Assignment: Navigate to the classification system in SAP. Verify if the category in question (denoted by &1 in the error message) is assigned to a hierarchy. If it is not assigned, you will need to assign it to the appropriate hierarchy. Create or Modify Hierarchy: If the required hierarchy does not exist, you may
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