Scheduled Maintenance - July 8-9, 2025 | Pod 15 | Zendesk Messaging and Sunshine Conversations

Zendesk will perform critical maintenance which will impact performance for some customers on Pod 15 on July 8-9 2025, during the times listed below.

Affected products: Messaging & Sunshine Conversations

Important:  Only customers with who have been notified and have Messaging enabled will be impacted, based on the Pod maintenance dates and timings below. Impacted customers will receive a notification banner in their Support product on May 30.

Customers Affected: Zendesk Messaging and Sunshine Conversations customers on Pod 15 who have been notified, will experience a service disruption of 40 minutes at some time within the 40 minute maintenance window.

Date	POD	Start Time	End Time
July 8, 2025	15	13:30 UTC / 9:30 EDT	14:10 UTC / 10:10 EDT
July 8, 2025	15	14:45 UTC / 10:45 EDT	15:25 UTC / 11:25 EDT
July 8, 2025	15	17:15 UTC / 13:15 EDT	17:55 UTC / 13:55 EDT
July 8, 2025	15	18:30 UTC / 14:30 EDT	19:10 UTC / 15:10 EDT
July 8, 2025	15	19:45 UTC / 15:45 EDT	20:25 UTC / 16:25 EDT
July 9, 2025	15	13:30 UTC / 9:30 EDT	14:10 UTC / 10:10 EDT
July 9, 2025	15	14:45 UTC / 10:45 EDT	15:25 UTC / 11:25 EDT

Expected behavior: During the maintenance window, notified accounts attempting to use Messaging will be locked and unable to send outbound messages; instead, they will receive an HTTP 423 response. Messages sent by end-users via social messaging channels for these accounts will be preserved and buffered until the account is unlocked.

What do customers have to do? If customers have enabled their own client-side Content Security Policy, they must include *.zendesk.com on their allowlist to ensure that their integrations continue to initialize and function.

Why we're doing this: The Zendesk Messaging team is rehoming customers accounts to be located in the same data store as their Support accounts increased reliability, performance, and data locality.