Overview
Amazon SPAPI does not providing a Reporting API SLA across all report types. Depending on the class of report, SPAPI reports do not uniformly become available immediately when a reporting period closes. As a result, each report type has different latency characteristics, and understanding these timing patterns is crucial for reliable data retrieval.
Report Availability Windows
Amazon does not provide Service Level Agreement (SLA) metrics for all API reports. Some reports may be available within an hour of period close, while others may take days.
Practical Example
Current Date Context: If today is September 9th and a request is made for September 8th report data, the data typically becomes available in Amazon system around 4:00 AM UTC, though it may be available earlier or later. Attempting to move a request schedule 3:30 UTC may cause the data may arrive sooner in some cases, but increased API errors and retries cause data to arrived later that typical avaialbility timing. As a result this means higher schedule volatility, more potential retries and errors. This will cause requests to be queued for retry later due to reports being unavailable.
Key Timing Considerations
Timezone Handling
API Operations: All Amazon API operations use UTC timezone
Amazon UI: Often uses uses Pacific Time (PST/PDT)
Documentation: May reference "Dashboard" times, which typically means Pacific Time
Best Practice: Always work in UTC for API integrations to avoid timezone confusion
Conclusion
Report availability timing varies significantly by report type and request schedules are planned accordingly. While more aggressive timing may provide faster data access in some cases, approaches aligned with observed availability or Vendor Central TP90 generally provide better reliability. Consider your specific use case requirements when choosing between speed and reliability, and always test timing adjustments with non-critical reports first.