Webhooks, API Reliability, and Change Control
Webhooks, API Reliability, and Change Control
Actual contracts, signed events, retries, duplicate handling, delivery records, and compatibility guidance.
Updated 2026-10-06
Find the contract, not just a feature name
The API reference documents actual routes for activation, validation, deactivation, product credentials, serial claims, customer accounts, delivery, checkout, partners, and other integration groups. Use the endpoint's authentication, fields, response, and errors, not a general marketing description.
Webhooks and verified provider events
Webhook signatures authenticate the sender for the relevant integration. Verification must use the documented payload and signing procedure. A signature check, a successfully accepted event, and completed fulfillment are distinct stages.
Retries and duplicate events
Retries can deliver the same event more than once. Integrations must recognize the event or request identity before repeating a financial or access-changing action. Timeouts should not be interpreted as proof that an earlier operation never happened.
Delivery records and troubleshooting
Use available request errors, event references, delivery history, and non-sensitive logs to determine whether a request was accepted, queued, retried, or completed. Do not expose API secrets or full customer records in those logs.
Versioning and compatibility
Package versions, endpoint contracts, examples, and changelog entries are separate compatibility signals. Use the version and route documented for your integration. No blanket semantic-versioning guarantee or permanent compatibility for every undocumented route is promised.
What release checks can establish
Tests and contract checks provide evidence for the cases they exercise. They do not establish a universal uptime SLA, disaster-recovery deadline, or that every provider event and customer environment has been tested.
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Reference and change history
Start at the implementation surface you need.