When a subscription payment fails, PayPal will retry for n times.
What transaction type (subscr_cancel
or subscr_eot
) is sent back via IPN, aft
Paypal returns subscr_failed
for this case, and the possible return values are:
subscr_signup: subscription sign-up.
subscr_cancel: subscription cancellation.
subscr_failed: subscription payment failure.
subscr_payment: subscription payment.
subscr_eot: subscription’s end-of-term.
subscr_modify: subscription modification.
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