Cancel Payment Request

Last updated: 2026-03-25

POST

/in-store/api/v1/cancel

Cancel a pending or in-progress payment transaction

Request Body

terminalIdstringrequired

The ID of the terminal where the transaction is in progress.

HTTP Status Code Summary

Code	Description
201	Cancel request created and sent to terminal.
400	Bad request. Check that terminalId is provided and valid.
401	Unauthorized. Ensure your bearer token and subscription key are valid.
409	Conflict. The terminal is not in a cancellable state.
422	Unprocessable entity. The transaction may already be completed or cancelled.

Request

cURL

1curl -X 'POST' \
2  'https://demo-api.westpay.se/in-store/api/v1/cancel' \
3  -H 'accept: application/json' \
4  -H 'Ocp-Apim-Subscription-Key: <merchant-subscription-key>' \
5  -H 'Authorization: Bearer <access-token>' \
6  -H 'Content-Type: application/json' \
7  -d '{
8  "terminalId": "<your-terminal-id>"
9}'

Response

1{
2  "onlineAPIRefId": "23179040000954"
3}