Message type: E = Error
Message class:  RSTT0 - Trace Tool: Message Class Engine Layer 
Message number: 297
Message text: &1 is not a valid read mode
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The SAP error message RSTT0297, which states that "&1 is not a valid read mode," typically occurs in the context of SAP's data extraction or reporting processes, particularly when dealing with the SAP BW (Business Warehouse) or SAP BI (Business Intelligence) systems. This error indicates that the system is trying to use a read mode that is not recognized or supported.
Cause: Invalid Read Mode: The read mode specified in the query or data extraction process is not valid. This could be due to a typo, an outdated configuration, or a mismatch between the expected and actual read modes.
Configuration Issues: The settings in the InfoProvider or the query definition may not be correctly configured to support the specified read mode. Version Compatibility: If there are version mismatches between different components of the SAP system, it may lead to unsupported read modes. Custom Code: If there is custom ABAP code involved in the data extraction
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