I posted this on one of the threads:
If you have PayPal Instant Payment Notifications activated, you will receive an IPN on:
* Successful Sign-up
* Cancellation
* Successful Payments
* Scheduled Payment Failures
* End of Term
see:
http://66.102.7.104/search?q=cache:eZibSQki7lgJ:https://www.paypal.com/en_US/pdf/subscriptions.pdf+paypal+subscriptions+documentation&hl=en&start=1#43
But what I said in my previous post is still true. You can't raise the subscription price without getting the person to agree to it BEFORE you can charge them.
You CAN have payment scheduling but notice a person agrees to this up front. You cant's make these changes after a subscription has started:
From PayPal:
Payments after a trial period ends are made one day after the end of the trial period; if trial
period 1 is three days long, then the payment for trial period 2, or the regular rate if there is not
a second trial period, occurs on the day after the completion of period 1, or day 4. The
subscriber has full access to the subscription for 3 days before the next trial period or regular
rate begins.
Regular rate payments are made on the day of the previous period’s completion, which means
payments will be made on the same calendar day if they occur on a monthly or yearly basis.
E
XAMPLE
4.1 Payment Scheduling
Subscription Terms:
Free for the first 7 days
$5 for the next 3 weeks
$10 per month thereafter
The Subscriber signs up on Aug.1, and is billed as follows:
Aug. 1 = $0.00
Aug. 9 = $5.00
Aug. 31 = $10.00