Checkout failure runbook

Alert signals

• Sudden drop in checkout success rate.
• Increase in 4xx/5xx errors when creating sessions.
• Customer tickets reporting blocked payments.

Immediate response

1. 11) Confirm scope

   Isolate whether impact is global, per organization, or per mode (test/live).

2. 22) Verify dependencies

   Check Stripe availability, database health, and processing queues.

3. 33) Mitigate

   Enable safe fallback or controlled degradation to avoid full conversion loss.

4. 44) Communicate

   Publish update with impact, active mitigation, and next review checkpoint.

Technical checklist

• Checkout endpoint responds within SLA.
• Organization token and scopes are valid.
• No abnormal growth of reconciliation failures.