Refund a terminal payment

Initiate a refund for a completed terminal payment. The refund is sent to the same terminal that processed the original sale.

amount_minor is optional — omit for a full refund. For partial refunds, specify the amount in minor units.

The refund command is dispatched asynchronously. Subscribe to billing.terminal_refund.succeeded webhooks for the outcome.

Related endpoints

• POST /terminal-payments — Initiate a terminal payment
• GET /terminal-payments — List terminal payments
• GET /terminal-payments/{id} — Retrieve a terminal payment
• POST /terminal-payments/{id}/cancel — Cancel a terminal payment
• POST /terminal-payments/{id}/void — Void a terminal payment

Common errors

• 404 resource_missing — the referenced resource does not exist or is not visible to your key.
• 422 unprocessable_entity — business-rule failure (for example, refunding more than the original charge).

Idempotency

Pass an Idempotency-Key header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see the idempotency guide.

curl -X POST "https://api.revkeen.com/v2/terminal-payments/00000000-0000-0000-0000-000000000000/refund" \  -H "x-api-key: $REVKEEN_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "amount_minor": 2500,    "reason": "Customer return"  }'

{
  "data": {
    "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
    "invoice_id": "f4c4edb8-11e0-4b33-bcc1-482dc59ebb32",
    "device_id": "3bafab7b-4400-4bcf-8e6e-09f954699940",
    "type": "sale",
    "status": "requested",
    "amount_minor": 0,
    "currency": "string",
    "reference": "string",
    "terminal_serial": "string",
    "uti": "string",
    "auth_code": "string",
    "response_code": "string",
    "rrn": "string",
    "card_scheme": "string",
    "masked_pan": "string",
    "entry_mode": "string",
    "error_message": "string",
    "created_at": "string",
    "completed_at": "string"
  }
}

{
  "error": "string",
  "message": "string",
  "code": "string"
}

{
  "error": "string",
  "message": "string",
  "code": "string"
}