Messaging and alerts
How alerts fall back across channels, how acknowledgement works, and what crosses borders.
Fallback order
By default an alert tries WhatsApp, then SMS, then voice, then email. Voice is used only where an approved voice provider is enabled. Each organisation can set its own order.
Delivery and acknowledgement
- Delivery is at least once and is measured by delivery receipts.
- Acknowledgement is exactly once: an alert carries one ID and can be acknowledged once, whichever channel it arrived on.
- Delivered and acknowledged are reported separately. A delivery receipt does not mean a person read the alert.
- If every channel fails, the alert is marked undelivered and escalated.
Minimal content for Nigerian organisations
For organisations whose data is in Nigeria, WhatsApp and email messages carry only an alert code and a link. The details open after sign-in, inside the cell. Providers are listed on Sub-processors.
Providers
Receipt webhooks are verified for Meta WhatsApp Cloud, Termii, Africa’s Talking and Resend. Sending through them is not wired yet.