i bought a standard music license track to use it as my background music for Outro/Merchpromo in one single channel! i will use the same outro/Merchpromo at all of my videos, so it’s alright to use it with an unlimtied number of uses? or i need to get a extended license?
You can’t use for unlimited users, you have to purchase every time
If the videos are related (same topic, episodes,…), the “series policy” allows you to use a single license for up to 52 episodes (or a year, whichever comes first).
If your outro is strictly the same (ie, a produced clip that you just snap at the end of each video), then you could argue that the outro is your end product, not the whole video.
Hope it helps!