AI app guides
Why connected-app events need a history, not just a latest message
Handle repeated and delayed service events without moving an order or payment into the wrong state.
Zocri · 2 min read · Sources checked
Treat a service event as evidence
Stripe states that webhook events are not guaranteed to arrive in their generation order and that duplicate deliveries need handling. For a connected business app, that means the newest message received is not always the newest business fact. An order may already be paid when an older processing event arrives. The app needs rules for interpreting the event against the current record.
Write the states and permitted transitions in plain language. An unpaid order can become paid when the authoritative payment evidence supports it. A later refund is a different state change. Avoid a generic rule that copies every arriving status onto the order regardless of context.
Identify and record processed events
Ask the implementation to recognize repeated delivery of the same event. Retrying a notification should not create another order or send the customer the same receipt repeatedly. Keep enough event identity and processing status to investigate what happened without storing unnecessary sensitive payload data.
Distinguish receiving an event from successfully applying it. A service can deliver a message while the app fails to update its record. An operating view should reveal unresolved processing rather than making every received event look complete. Define who investigates that queue and how a safe retry works.
Reconcile uncertain state with the source
When an event refers to missing or conflicting information, the app may need to retrieve the current state from the authoritative service. Decide how that step works and what the customer sees while it remains unresolved. Do not invent a final payment or fulfillment result merely to clear a warning.
Keep business actions tied to verified state. If access is granted after payment, define the exact evidence needed and how a later reversal affects access. The owner should understand these rules without having to infer them from the arrival order of technical messages.
Test the uncomfortable sequence
Use provider-supported test tools or a controlled environment to deliver a duplicate event and an older event after a newer one. Verify the final order state and the number of resulting messages or side effects. Include a temporary processing failure followed by a retry.
Document the provider, tested event types and untested conditions. A successful connection check is only the beginning of evidence. The integration becomes dependable when it interprets events consistently, exposes unresolved work and lets an operator reconcile the app with the system that owns the underlying fact.