Auto complete not working while searching user in OWA

Question

Hello

Please i need your help on this issue.

Auto complete is not working while searching user in OWA.

For some users, auto complete is not working while searching users in OWA. Throwing "Results not found"

Answer 1

Hi BNI,

Thank you for posting your question in the Microsoft Q&A forum. 

After reading your description, I noticed you mentioned “autocomplete” but the error message you’re seeing is “Results not found,” which sounds more like a search behavior rather than autocomplete.

Based on Microsoft’s documentation https://learn.microsoft.com/en-us/microsoft-365-apps/outlook/contacts/outlook-autocomplete-list, if you're connected to an Exchange Online mailbox, the suggestions list for the To/Cc/Bcc lines when composing a message is powered by Microsoft Search. The “Results not found” message typically appears when using the search bar in OWA, not when autocomplete is trying to suggest an email address in the To/Cc/Bcc lines. To better understand your scenario, I’d like to ask a few clarifying questions:

• You mentioned “For some users, autocomplete is not working.” Were these affected users previously able to use this feature successfully, or is this a new issue?
• Have the affected users enabled the autocomplete feature in their settings?
• What language are these users using in OWA? In some cases, language settings can affect search behavior.
• Also, as noted in the article above: “The AutoComplete list for Outlook is specific to Outlook. It isn't shared with Outlook on the web, which maintains its own AutoComplete list.” So if these users recently switched to using OWA, their autocomplete list may not be populated yet.

Additionally, you may want to review this Microsoft support article that discusses cases where a recipient’s address isn’t autocompleted or suggested: https://learn.microsoft.com/en-us/troubleshoot/exchange/email-alias/address-not-autocompleted-or-suggested

Let me know if you can share more details based on the questions above—happy to help further!

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