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Question

User search by Amplitude ID erroneously returning no matches

  • March 26, 2025
  • 1 reply
  • 6 views
A
Novice
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Hi,

 

Over the last couple of days we’ve been encountering a problem with an existing production system which searches for Amplitude records by Amplitude ID using the User Search API.
e.g: amplitude.com/api/2/usersearch?user=foo

 

We’re consistently seeing no records returned by the API when we’ve verified that an Amplitude record exists with the exact Amplitude ID we’re searching for.
 

The same API is still able to return matches when searching using Device IDs.

Has this functionality of the User Search API been deprecated?

1 reply

L
Team Member
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  • Liping Yin
  • Team Member
  • 9 replies
  • March 27, 2025
Hi Adam,

Thank you for reaching out!
This is Liping Yin from Amplitude Technical Support Team. I am happy to help!

Yes, this API is still working. Could you please double-check that you’re looking at the correct project?

If you are sure you are checking the correct project, could you share an example **Amplitude ID** along with the **project name** you’re checking? That’ll help us troubleshoot further.

Best regards,
Liping Yin | Technical Support Engineer
Amplitude


P.S. Checkout upcoming events and user meetups on our events page.

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