Set global upload rules
The YITH Uploads plugin lets your customer uploads and attach files to the products in the cart or directly to attach files to the whole order.
You can dinamically set how many files could be uploaded for every item by creating ‘upload rules’ from the plugin settings, this demo site was configured to allow a single upload per item, as you can see in the following picture.
Setting an ‘upload rules’ from the plugin settings page allow all your products to be associated to as many files as many ‘upload rules’ you created.