I really can't believe how badly this move has gone. I'm getting IPN's for existing subscriptions with no old_subscr_id, that means i'm getting an IPN for a payment to "I-xxxx" but no I have no idea who it's for because in my DB it's saved as "s-xxxx" and old_subscr_id is not included. We're talking about subscriptions which have been active since 2011 here and now I have to manually try and figure out who each payment was for based on their name or email address. Right now i'm only getting "old_subscr_id" in 90% of cases, 10% I have to manually do myself, which is completely unacceptable for a payment gateway like paypal. That's not even going into how bad an idea it was to switch the ID's in the first place.
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