API Reference

Inbound: Installment status change notification

post
https://api-bnpl-wl.sandbox.open-co.tech/webhooks/installment-status

Direction: Inbound (QI Tech / payment infrastructure → BNPL WL). Partners do not call this endpoint directly.

Webhook endpoint called by QI Tech when an installment status changes. This notification is used to keep the BNPL system in sync with the financial institution.

Common status transitions:

  • PENDING -> PAID: Normal on-time payment
  • PENDING -> OVERDUE: Payment missed past due date
  • PENDING -> PARTIAL: Partial payment received
  • OVERDUE -> PAID: Late payment received (fines and interest may apply)
  • OVERDUE -> PARTIAL: Partial late payment received
  • PENDING -> CANCELED: Installment was canceled
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Body Params

Webhook payload sent by QI Tech when an installment status changes. Used to keep the BNPL system synchronized with the financial institution.

uuid
required

Person identifier associated with this installment

string
enum
required

Webhook event type

Show Details
installment.status_changeTriggered when an installment payment status changes
Allowed:
string
required

Installment identifier

string
enum
required

Previous installment status before the change

Show Details
PENDINGAwaiting payment, not yet due
CANCELEDInstallment was canceled
PAIDPaid in full
OVERDUEPast due date without payment; fines and interest may apply
Allowed:
string
enum
required

New installment status after the change

Show Details
PENDINGAwaiting payment, not yet due
CANCELEDInstallment was canceled
PAIDPaid in full
OVERDUEPast due date without payment; fines and interest may apply
Allowed:
date-time
required

Timestamp when the status change occurred

data
object
required

Event data with financial details

Responses

Updated about 1 month ago

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Response
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application/json

Updated about 1 month ago