What you’re requesting Euan is that our module change a member’s group based on a purchase? If so, what we’re talking about is permissions, rather than what I think most people would think of as a subscription. That said, our subscriptions system does include a method of attaching permissions to a purchase. Our module doesn’t change a member’s member group at any point… but we do have a built in system to set permissions, which, in my opinion is better, because you don’t need to create member groups for every last thing… you can get really granular with a person’s access based on the permissions they’ve purchased.
{exp:cartthrob:add_to_cart_form
return=""
entry_id="123"
permissions="1|2|3"
}
<input type="submit" value="Add to Cart" />
{/exp:cartthrob:add_to_cart_form}
