Does the custom variable sent by PayPal during subscr_signup match the one sent during subscr_cancel?

Question

On the Subscriptions and Recurring Payments Variables page, it's shown that the custom variable is sent for the txn_type of subscr_cancel. Since there's no way to send a new custom variable, does that mean PayPal is sending the same custom variable sent during subscr_signup?

Answer 1

Yes.

I discovered that I could check the IPN message sent by PayPal by visiting Profile > Preferences > Instant Payment Notification preferences > IPN History page and then clicking the appropriate Message ID link.