What is that "checking your licenses..." grey notifcation that keeps popping up?

[Android Central Question]

So my Galaxy S6 Edge has been doing this thing to me lately where a grey notification at the bottom of the screen displays "checking your licenses..." and quickly disappears. This happens most of the time when I login and it disappears extremely fast. Any idea as to what it is?

 

[Rukbat]

Some app that's running (probably a paid one) is checking to see if you have a license to use it. It's probably a toast, and you can't find where toasts are coming from, so you'd have a better idea than we would.