Underpaid

Criteria

paid_amount is less than pay_amount

Callbacks to be sent in this scenario

Callback event	Invoice status	Invoice status context	Description
transaction_created	new	null	A customer has just broadcasted their transaction on the network but paid_amount is less than pay_amount
transaction_confirmed	new	null	The transaction has been confirmed on the network
status_changed	unresolved	underpaid	The invoice needs to be resolved
status_changed	completed	null	The transaction amount was exchanged at the new exchange rate. The final invoice amount may differ from the original one
status_changed	refunded	null	The whole transaction amount was refunded

API auto settings and status flow

API Auto Settings	Payment Flow
Do nothing, I will handle them myself	new → txn sent → txn confirmed → invoice expired → unresolved:underpaid
Automatically refund to my crypto account	new → txn sent → txn confirmed → invoice expired → unresolved:underpaid → tx refunded → refunded
Automatically recalculate at a new exchange rate and settle	new → txn → txn confirmation → invoice expiration → unresolved:underpaid → tx recalculated → completed