Message type: E = Error
Message class:  RSTT0 - Trace Tool: Message Class Engine Layer 
Message number: 392
Message text: Internal error during document processing of characteristic value &1 (&2)
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 RSTT0392, which states "Internal error during document processing of characteristic value &1 (&2)," typically indicates that there is an issue with the processing of a characteristic value in the context of document handling or processing in SAP. This error can arise in various scenarios, particularly when dealing with characteristics in the context of classification, variant configuration, or document management. Possible Causes: Data Inconsistency: There may be inconsistencies in the data related to the characteristic value being processed. This could be due to missing or incorrect entries in the master data.
Configuration Issues: The configuration settings for the characteristics or the document type may not be set up correctly, leading to processing errors. System Bugs: There could be a bug in the SAP system or a specific transaction that is causing the internal error. Authorization Issues: Lack of proper authorizations for the user trying to process the document may lead to unexpected
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