To enable the notifications, you have to go to
Extensions > My Extensions > Apps in the admin. and then at the app "Back in stock notification" right click on
... > Configuration on the right.
Now you are in the settings for the app. You now have to perform the following two steps:
First, you have to activate the app for your sales channels via the checkbox
In addition, you have to enter your SMTP access data for email communication under
Mailer. Make sure in any case that
Sender address are filled in, as these are mandatory fields. Most likely you will also need to fill in the
Finally, you need to press the
Save button. That was all!