Combine auto increment field with another field
add_filter(‘frm_validate_field_entry’, ‘combine_auto_id_with_field’, 15, 3); function combine_auto_id_with_field( $errors, $posted_field, $posted_value ) { if($posted_field->id == 56){ //change 56 to the ID of the destination field $_POST[‘item_meta’][56] = $_POST[‘item_meta’][54] . $_POST[‘item_meta’][55]; //change 54 and 55 to the IDs of the auto increment field…Continue reading