Unverified50% confidenceFactExact time
Payment companies do not guarantee that webhook messages arrive in the order they occurred, nor that they are sent only once, so applications need idempotent handling and the ability to ignore stale events.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe industry-default semantics for webhook delivery is "at-least-once", and the receiver must bear the responsibility for idempotency itself, that is, identifying and discarding duplicate events.68% similarUnverifiedBack-channel logout relies on HTTP POST requests; if an RP endpoint is unreachable, the logout notification fails, and the specification recommends that IdPs implement a retry mechanism but does not mandate it.66% similarUnverifiedIn email processing scenarios, auto-send should never be enabled and draft mode should always be maintained, to avoid AI hallucinations generating incorrect quotes that are automatically sent to potential clients.65% similarUnverifiedIrreversible operations such as refunds, order cancellations, and sending emails should not be executed automatically by the model; they should be marked as requiring approval, with the tool returning a pending_approval status and summary information, and the real call executed only after human confirmation.64% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1051065API
curl https://kongchang.com/api/v1/knowledge/claims/1051065MCP
get_claim(id=1051065)