Unable to add more users to Project Role in JIRA

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  • Unable to add more than a certain number of users to any project role
  • Running JIRA behind a Proxy, eg. IIS
  • This is the error being returned when attempting to add more users to Project Role: "The JIRA server was contacted but has returned an error response. We are unsure of the result of this operation"


Every time a new user is added to a project, that username is also added to the url. The problem is the request url is longer than the max allowed query string configured for IIS.


  • Increase the maximum query string for IIS from 2048 (default) to 4096 bytes.


    (info) Please note that Proxy configuration is outside the scope of Atlassian Support Offerings.

Last modified on Feb 26, 2016

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