How to get the commerce subscription status for current user on particular product page? How can I get the product subscription status for current logged in user on particular product page. Suppose user can subscribe for a video tutorial and we have video as a product then how can we know that current user had already subscribed to this product or not.
I'm actually in thought of adding comment to your question, but my reputation count made me convert my comment to answer. (Yes, I'm a beginner!)

For your question:
You have multiple products in your page and there exists a distinct 'commerce sp time' per product. So, the process flow would be,

When an end user subscribes to a particular product:


Disable the subscribe button of that product (may be a video tutorial) and change its value to 'subscribed'.
Set a schedule for the user with respect to 'commerce sp time' of that product, to trigger a custom PHP code (probably, enabling the susbcription button of that product).


All my concern is, Is this useful? 
I had already achieved this feat technically, so would you..