Endpoint verification and TLS
Serve HTTPS with valid certificates, complete provider verification challenges and rotate shared secrets regularly.
Idempotent processing
Expect retries: persist event IDs to deduplicate work and return 2xx quickly while processing asynchronously.
Queues and scale
Push events into a queue to absorb spikes; scale consumers to meet latency SLOs.
Debugging workflows
Use structured logging and staging replays of payloads. Platform webhook tools speed up troubleshooting.