Scheduled Maintenance - January 16-17 - WhatsApp Business API Clients

Zendesk will be performing scheduled maintenance on the WhatsApp Business API Clients hosted on our EU and US platforms. 

Affected products: WhatsApp messages within Sunshine Conversations and Support.

Important: Each WhatsApp Business API Client will be upgraded separately resulting in a brief period of WhatsApp message delay lasting less than 5 minutes, based on the maintenance dates and timings in the table below.

Customers Affected: All customers using a WhatsApp number on the WhatsApp hosted infrastructure. This excludes WhatsApp Cloud API customers.

We will be rolling out this upgrade during these periods:

Date	Region	Start Time	End Time
Monday, January 16,  2023	EU	19:00 UTC 12:00 PDT	07:00 UTC [January 17] 00:00 PDT [January 17]
Tuesday, January 17, 2023	US	23:00 UTC 16:00 PDT	11:00 UTC [January 18] 04:00 PDT [January 18]

Expected behavior: During this operation, customers may experience a brief period of WhatsApp message delay lasting less than 5 minutes. During this maintenance window, the rest of the Sunshine Conversations platform will remain unaffected and no service interruption will occur on any other parts of the platform.

When the upgrade of each API client is complete, WhatsApp message delivery will be fully restored, no messages will be lost, and no action will be required on your part.

Why we’re doing this: We will be upgrading all API clients from version 2.39.4 to the new version 2.41.2 due to the impending end-of-life of the current version on September 26, 2022.