Clarification on updated reporter field autoCompleteUrl in Jira API.

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In Service Desk Plus, we have integrated Jira to create Jira issues directly within our application. We are retrieving the field metadata using the following URL:

/rest/api/3/issue/createmeta?projectIds=project_id&expand=projects.issuetypes.fields

Recently, we noticed that the "reporter" field's autoCompleteUrl has changed to:

https://flow4.atlassian.net/rest/api/3/user/recommend?context=Reporter&issueKey=

What should we include after the issueKey? Should we provide the projectKey and append the user input search query like this: &query=${user_input_search}?

Additionally, is there a possibility that this autoCompleteUrl may change again in the future?

[Stefan Bauer]

This problem still exists in May 2025.

I also found this comment interesting, as states that the change was introduced somewhere in or before September 2024 and indicates that the user/recommend API is not even officially documented:

https://jira.atlassian.com/browse/JRACLOUD-84826?focusedId=3508293&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-3508293