Message type: E = Error
Message class:  WRCAT - Messages for cost allocation 
Message number: 015
Message text: Maintain a valid BW info object
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Certainly! Here's a detailed explanation for the SAP error message WRCAT015: "Maintain a valid BW info object": Error Message: WRCAT015 - Maintain a valid BW info object
Cause: This error occurs when you are trying to create or maintain an object in SAP BW (Business Warehouse) and the system expects a valid InfoObject, but the InfoObject specified is either: Not defined in the system, Not active, Incorrectly referenced, Or the InfoObject does not meet the required criteria for the operation you are performing. Typically, this happens during: DataSource creation or maintenance, Transformation or DTP (Data Transfer Process) setup, InfoPackage configuration, Or when linking InfoObjects in InfoProviders. Explanation: SAP BW InfoObjects are the fundamental building blocks for data modeling in BW. They represent business entities such as customers, products, time characteristics, etc. When you get this error, it means the system cannot find or validate the InfoObject you are trying to use.
Solution: Check InfoObject Existence: Go to transaction RSA1 ? Modeling ? InfoObjects. Search for the InfoObject you are
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