Webhooks
Withdrawal failed
The network rejected the transfer and the funds were returned to your balance. This also carries provider-driven reversals.
The HTTP body is this object exactly — there is no envelope and no type field. The event name is delivered in the X-Webhook-Event header. Most optional fields arrive as an explicit null; a few keys are dropped from the JSON entirely when unset, and those are marked as such below. Read values with a null-safe accessor rather than testing key presence.
postWebhookWITHDRAWAL_FAILED
Payload
Response
Return a 2xx status to acknowledge receipt.