# Some customers are experiencing data processing and message-sending delays

- Provider: [Customer.io](https://down.guide/providers/customerio)
- Confidence: Confirmed
- Impact: Degraded
- lasted 1h 23m
- started 2026-07-20 21:35 UTC
- Data Processing, Message Sending
- us
- id: DWN-d85ff0d9fd
- Official page: https://stspg.io/tp9vbdm7ldkf

## Updates from Customer.io
### 2026-07-20 21:35 UTC: investigating
Our engineers are currently looking into an issue that is causing data processing and message-sending delays for a small subset of customers in the US region. We apologise for any inconvenience caused.

### 2026-07-20 22:29 UTC: identified
The issue has been identified and we're working on a fix. Thank you for your patience.

### 2026-07-20 22:38 UTC: monitoring
A fix has been deployed, and we are processing any delayed backlogs. We are continuing to monitor the results.

### 2026-07-20 22:58 UTC: resolved
This incident has been resolved and all backlogs have been processed.

From the builder: does your app depend on Customer.io? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=customerio) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention Customer.io.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-d85ff0d9fd), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.