Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 678
Message text: Input help is only available for value lists
You tried to call the input help for a value field. The input help is
only available when you specified 'IN' in the operator field. The value
in the value field then represents the name of a value list.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_10020678: Input help is only available for value lists typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the input help (F4 help) is not available for the field you are trying to use, which means that the system cannot provide a list of valid values for that field.
Cause: Field Configuration: The field in question may not be configured to have a value list or input help associated with it. This can happen if the field is not linked to a domain or data element that has a defined value range. Data Migration Context: During data migration, certain fields may not have predefined value lists, especially if they are custom fields or fields that are not standard in the SAP system. Technical Issues: There may be technical issues or inconsistencies in the
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