Lusha incident
Conversational Intelligence returning 504 errors
Lusha experienced a critical incident on June 1, 2026 affecting Engage, lasting 1h 9m. The incident has been resolved; the full update timeline is below.
Affected components
Engage
Update timeline
- investigating Jun 01, 2026, 08:36 AM UTC
We are currently investigating disruptions to CI service.
- identified Jun 01, 2026, 09:09 AM UTC
The issue has been identified and a fix is being implemented.
- monitoring Jun 01, 2026, 09:14 AM UTC
between 08:33–09:05 UTC users saw errors loading CI features (calendar, meetings, snippets); root cause was an internal routing certificate mismatch, traffic has fully recovered and we are adding monitoring to prevent recurrence.
- resolved Jun 01, 2026, 09:46 AM UTC
Conversational Intelligence (EU) is fully restored — the routing issue that caused errors between 07:45–09:05 UTC has been fixed and monitoring is in place to prevent recurrence.