Index: core/units/helpers/csv_helper.php
===================================================================
--- core/units/helpers/csv_helper.php
+++ core/units/helpers/csv_helper.php
@@ -303,9 +303,20 @@
 					}
 				}
 
-				// 2. set object fields
-				foreach($import_data['field_list'] as $position => $field_name) {
-					if(isset($data[$position])) {
+				// 2. set object fields.
+				foreach ( $import_data['field_list'] as $position => $field_name ) {
+					if ( isset($data[$position]) ) {
+						$formatter_class = $object->GetFieldOption($field_name, 'formatter');
+
+						if ( $formatter_class !== false ) {
+							$formatter = $this->Application->recallObject($formatter_class);
+
+							// Date columns from grid are exported as 1 field so read them as 1 field as well.
+							if ( $formatter instanceof kDateFormatter ) {
+								$object->SetDBField($field_name . '_combined', 1);
+							}
+						}
+
 						$object->SetField($field_name, $data[$position]);
 					}
 				}