Attachment problem

Hello, is it possible to pass attachment to order? Our client has a 3d configurator which have a possibility to add image to the product

It would be possible with custom webhooks. You could choose to send your own email with attachments in your webhook for order.completed, you may also pick to not send the snipcart’s invoice email if you wish to send all of it in your own. The configuration is in your dashboard > checkout & cart.