This will walk you through how to allow notifications for your website in the Microsoft Edge Browser.
It is important that you do this in the browser that you most frequently use.
If you do not use Microsoft Edge as your main browser, then click on one of the following icons to be directed to the appropriate tutorial.
You will usually see a notification pop-up when visiting the website for the first time.
In most cases, you have already visited your website and will not see that pop-up.
Here is how you can allow those notifications.
Click on the menu (...) button , then click on "Extensions" 
Click on "Settings".
Click on the "View advanced settings" button.
Click on the "Manage" button.
Click on your Url.
Switch the toggle to on.