# RudderStack: Partial delivery failures to TikTok destinations

- Impact (vendor’s label): none
- Status: resolved
- Started: 2025-08-21 07:00 UTC · Resolved: 2025-08-21 15:30 UTC · Duration: 8.5 h
- Updates: 3 · Affected components: Data Processing Pipeline - Data Processing Pipeline (US), Data Processing Pipeline (US), Data Processing Pipeline - Data Processing Pipeline (EU), Data Processing Pipeline (EU)
- [Vendor status page: https://stspg.io/wdjzg4944f18](https://stspg.io/wdjzg4944f18)
- [Company: RudderStack](https://rewindex.com/company/rudderstack.md)

## Timeline of updates

- **investigating** 2025-08-21 07:00 UTC: We are currently investigating the issue around failures for TikTok destinations
- **identified** 2025-08-21 15:15 UTC: The issue has been identified and rollback is in progress
- **resolved** 2025-08-21 15:30 UTC: The incident has been resolved. Changes made to determine how event\_source is set to TikTok events broke the deliveries for its server SDK sources. Change has been reverted and failures have been replayed for all customers with configured backup


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Canonical: https://rewindex.com/company/rudderstack/incidents/yb07l8rs57vy · Markdown: https://rewindex.com/company/rudderstack/incidents/yb07l8rs57vy.md · JSON: https://rewindex.com/api/v1/companies/rudderstack/incidents/yb07l8rs57vy · Generated 2026-10-18T11:27:07.777Z