Message type: E = Error
Message class:  CNV20400 - Message class CNV20400 
Message number: 056
Message text: Summarization Data Not Built in system.
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 CNV20400056: Summarization Data Not Built in System typically occurs in the context of data migration or data conversion processes, particularly when using SAP's Conversion Tools or during the execution of specific reports that rely on summarized data.
Cause: The error indicates that the summarization data required for the operation you are trying to perform has not been built in the system. This can happen for several reasons: Missing Summarization Jobs: The necessary background jobs that create summarization data have not been executed. Data Migration Issues: If you are migrating data from one system to another, the summarization data may not have been transferred or created in the new system.
Configuration Issues: There may be configuration settings that prevent the summarization data from being generated. System Upgrades: After an upgrade, certain summarization processes may need to be re-executed.
Solution: To resolve this error, you can take the following steps: Check Summarization Jobs: Verify if the relevant summarization
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