Issues Microsoft Aware of it and working on it Issue ID EX939228

Some users' searches may fail and provide no results in the Outlook desktop client and Outlook on the web

Affected services

Exchange Online

Start time

Oct 29, 2024, 9:11 PM GMT+3

User impact

Users' searches may fail and provide no results in the Outlook desktop client and Outlook on the web.

Scope of impact

Some users attempting to perform searches in the Outlook desktop client and Outlook on the web may be intermittently impacted.

Root cause

A service memory issue is causing the infrastructure responsible for facilitating core service search to intermittently go into an unresponsive state.