You risk to lose them unless you make system for them to be notified of the product coming back to stock. Then why not using plugin that allows them to be added to list and being informed in manual and effective way. This is what YITH WooCommerce Waiting List does allowing you to loyalise them in simple and at the time not lose them.. form to receive email when the item is back in stock.. If you can't find this plugin in language and want to annotate it use the tool Translating WordPress.. Or if you have created your own language cram or have update for present one you can send it as attachment from Contacts page and we will bundle YITH WooCommerce Waiting List... Upload the folder into the wp-content plugins directory of your WordPress site.. I installed the version it worked the plugin but it is not sending the emails to the post users..... Browse the code recheck out SVN repository or subscribe to the development log RSS.... Fix Add users email in BBC thanks to jedelucca and Spartan SA from wordpress support forum...
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