Moving to Adobe Stock
You can license an asset on behalf of a client. However, please note that if you want to use the same asset for different clients, the asset must be licensed separately for each client use.
Your client that licenses the images/videos can re-use the assets for their own use. Just like images that can be used in many different print and web applications as long as it is for the same licensee.
Please see the link for better understanding:
Feel free to update this thread in case of any additional query.