- delete_sales_point($selected_id);
- display_notification(_('Selected point of sale has been deleted'));
- $Mode = 'RESET';
+ if (key_in_foreign_table($selected_id, 'users', 'pos'))
+ {
+ display_error(_("Cannot delete this POS because it is used in users setup."));
+ } else {
+ delete_sales_point($selected_id);
+ display_notification(_('Selected point of sale has been deleted'));
+ $Mode = 'RESET';
+ }