Hi Edward, you have added a number greater than 0 response validation with a custom message 'You must select items before placing an order!' for the Order Amount field in the form. If you would like to allow users to submit their order even if the amount is zero, then you should remove this response validation for the order amount field. Login to Neartail > click Forms > click on the form to open it > Edit page will be displayed > In the Edit page, click on the order amount field to select it > click on the settings gear icon > Question settings page will be displayed > click Answer > delete the response validation and click Save.