Calculated fields are not visible by the NMSP tool and cannot be mapped.
Calculated fields in SharePoint cannot be written to by the NMSP tool therefore they cannot be selected as a mappable field during the migration. A SharePoint calculated column is designed to calculate a value based on a specific formula or relation to another field. It cannot be used to insert content into.
If you want to migrate a Lotus Notes calculated field then you must choose a different target column such as single/multiple lines of text or a date & time column. You can then add a calculated field manually to the list and configure your formula accordingly.
