curl --request PUT \
  --url https://tabs.service.getjusto.com/api/integration/custom/{salesChannelConfigId}/cancel-order \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "integrationOrderId": "<string>",
  "reason": "<string>"
}
'

{
  "order": {
    "tabId": "<string>",
    "integrationOrderId": "<string>"
  }
}