Message type: E = Error
Message class:  SEPMH_DG - EPM HANA DG - Messages 
Message number: 519
Message text: Parameter must be a number: &1
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.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
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The SAP error message SEPMH_DG519, which states "Parameter must be a number: &1," typically indicates that a parameter expected to be a numeric value is instead receiving a non-numeric input. This can occur in various contexts within SAP, such as during data entry, configuration, or when executing certain transactions.
Cause: Incorrect Input: The most common cause is that the user has entered a non-numeric value (like a string or special character) in a field that requires a numeric input. Data Type Mismatch: The system may be expecting a numeric data type but is receiving a different type (e.g., character or string).
Configuration Issues: There may be issues in the configuration of the application or module that is leading to this error. Custom Code: If there are custom developments or enhancements, they might not be handling the input correctly.
Solution: Check Input Values: Review the input values for the parameter that triggered the error. Ensure that only numeric
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