After a successful save Sprwt reloads the item and shows a green Done! banner. If you created a new item you land on its new ID. If validation fails you stay on the form with a red banner ("Name empty", "SKU Length should have a max of 12 characters", or an "Update Error ..." message for image or price problems). When the form is embedded in the onboarding wizard, the same messages are returned to the wizard instead of a full page reload.