Integrating Trial Subscriptions with Paypal

[Angles]

I run a forum that charges for a monthly subscription. We use paypal and the subscription is recurring until canceled.

What I would like to do, is create an offer that is (for example) $20 for the first month and $100 per month after that. I would like this offer integrated with paypal so once they make the purchase once, the details are taken care of for the customer (meaning they don't have to go to paypal multiple times to cancel and change the subscription for this offer).

Looks like it may define some of the variables and it certainly seems possible from the paypal side.:


https://www.paypal.com/uk/cgi-bin/we...ptions-outside

So,

1. Has anyone here successfully integrated something like this into their forum?

and

2. Can anyone outline how to achieve this goal?

Thanks in advance!

trial offer, Trial Subscription, Paypal