Reads a renewal idempotency key back into the subscription, period and
attempt it names, or undefined for any other key. For PSPs that store no
metadata but echo the key (Paysafe's merchantRefNum is the key), this
is how a payment webhook finds the subscription to settle.
Reads a renewal idempotency key back into the subscription, period and attempt it names, or undefined for any other key. For PSPs that store no metadata but echo the key (Paysafe's
merchantRefNumis the key), this is how a payment webhook finds the subscription to settle.