Delivery issue on Zalo channel in Vietnam - Prelude Status

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Delivery issue on Zalo channel in Vietnam

Resolved·Degraded performance

Zalo is back online. The channel is back to full availability.

Fri, Apr 24, 2026, 11:35 AM

(5 months ago)

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Affected components

Apr 23, 2026, 10:00 AM

Apr 24, 2026, 11:35 AM

Verify

Updates

Resolved

Zalo is back online. The channel is back to full availability.

Fri, Apr 24, 2026, 11:35 AM

Identified

The Zalo channel is currently unavailable in Vietnam due to a third party provider issue.

Verify messages sent via Zalo are currently fallbacking to SMS.

We are currently exploring alternative routes to Zalo.

Thu, Apr 23, 2026, 10:00 AM(1 day earlier)