A field’s data type is the most important property. It determines what kind of data the field can store. Please make sure the field type will fit your requirements before adding any production data.
https://abcfolio.com/wordpress-plugin-staff-list/documentation/input-fields-add-field/
Some of the field types can be exchanged some of the others not. For testing, delete a field and create the new one of the desired type.
On production, when you already have the data loaded, you may or may not be able to change the field type. There is no documentation but some of the field types are interchangeable.
The correct steps:
1. Delete the field from Template > Input Fields. Remember the field number (Fx)!
2. Recreate the field (same F number), selecting the required field type.
3. Open one of the staff member records.
4. Check if the field’s data is still there.
If you can see the new field type populated with data, you are OK. Field types are compatible. You can proceed with updates. If not, do not save the record. Go back to the template and recreate the old field type.
Changing field type won’t remove the staff member data. Updating the record will.
