Callback: shipping rate

The merchant platform provides the callback URL and Xcotton POSTs rate updates to it. Header xmh-hmc-signature. Success is HTTP 200 only (see authentication §4.2). The errCode in the response body is not parsed.

For the full field reference see API reference · webhook shippingRateUpdated. Do not send requests to the OpenAPI hosts.

{"parcelRate":0.02,"domain":"example.com","openapiUsdBasePrice":"0.98"}