‎SharePoint suggestions api has stopped returning results‎

Copper Contributor

I have a custom search solution that uses search suggestions api:

/_api/search/suggest?querytext='tes'&inumberofquerysuggestions=10&fprequerysuggestions=true&fprefixmatchallterms=true&culture=1033

This api endpoint used to work before but has started returning empty results lately.

I also checked on other tenants as well, the api doesn't return results on all tenants (it used to return results before).

I have a query suggestions text file in place as explained here

Steps to reproduce

  1. Login to any SharePoint online tenant
  2. Add a query suggestions text document like the one attached below by following steps mentioned here
    QuerySuggestions_alwayssuggest.TXT
  3. Try to query the suggestions after waiting for at least 24 hours after adding the query suggestions
  4. Test the api endpoint after 24 hours of waiting: /_api/search/suggest?querytext='tes'&inumberofquerysuggestions=10&fprequerysuggestions=true&fprefixmatchallterms=true&culture=1033

Expected behavior

If the query suggestions have been added, the suggestions api should return suggestions for any text that belongs in the suggestions text file

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