Create a database activity. When selecting the fields for the activity make sure to include two latlong fields. Make one set required. Save the templates. Try adding just the Latitude or the Longitude for both longlat fields. After trying to submit, check that there is an error message informing you that both latlong fields need to be filled in. Fill in all of the details for the required fields, but leave the non required fields empty. Check that the entry is added. Create another database activity. When selecting the fields for the activity include one latlong field. Make sure they are not required Save the templates. Try adding just the Latitude or the Longitude for the longlat field. After trying to submit, check that there is an error message informing you that the both the latitude and the longitude fields need to be filled in. Fill in all of the details. Check that the entry is added.