Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 310
Message text: Enter a valid value
Use the input help to display the allowed values, and correct your
entry accordingly.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_10020310: Enter a valid value typically occurs during data migration or conversion processes, particularly when using SAP's tools for data transfer, such as the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the value entered in a specific field does not meet the expected criteria or is not valid for the context in which it is being used. Causes: Invalid Data Format: The value entered may not conform to the expected format (e.g., date formats, numeric values). Out of Range Values: The value may fall outside the acceptable range defined for that field. Missing Required Fields: If a required field is left blank or not filled correctly, it may trigger this error. Data Type Mismatch: The data type of the entered value may not match the expected data type (e.g., entering text in a numeric field).
Configuration Issues: There may be configuration settings in the system that
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10020309 &1 &2 has maximum target card. N, which is not allowed for intervals
What causes this issue?  The system found that the maximum target cardinality determined for &V1& &V2& is N, which is not allowed for ...
CNV_10020308 Cardinality for &1 &2 &3 has not yet been determined
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020311 &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020312 & &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.