Message type: E = Error
Message class:  RSO_RES_IS - BW: Informationsystem 
Message number: 004
Message text: Mismatch between catalog and data structure
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The SAP error message RSO_RES_IS004, which indicates a "Mismatch between catalog and data structure," typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when there is a discrepancy between the data structure defined in the InfoObject catalog and the actual data structure of the InfoProvider (like an InfoCube, DataStore Object, or MultiProvider).
Cause: Changes in Data Structure: The data structure of the InfoProvider has been changed (e.g., fields added, removed, or modified) after the InfoObject catalog was created or last updated. Inconsistent Metadata: The metadata in the InfoObject catalog does not match the current structure of the underlying data source. Transport Issues: If the InfoObject catalog was transported from one system to another, there may be inconsistencies if the target system has not been updated accordingly. Versioning Issues: Different versions of the InfoObjects or InfoProviders may lead to mismatches.
Solution: Recheck the InfoObject Catalog: Ensure that the InfoObject catalog is up
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