2051: Webhook delivery in progress.
An attempt for this delivery is on the wire right now.
HTTP status: 409.
The delivery is being attempted at this moment, so there is no timer to pull forward; the attempt’s result decides when the next one is due. Nothing was changed.
Troubleshooting
Section titled “Troubleshooting”- Read the delivery with GET /v1/webhook_deliveries?delivery_id=… and retry once its state is pending again.