Background

Some Jira cloud API functionality is not accessible to cloud apps, such as the ability to lookup user's by their email address (AC-1014). To workaround this limitation, JEMHC requires a preexisting Jira user with appropriate permissions to be configured as a "workaround" user, JEMHC authenticates as this user to perform user lookup API requests that cannot be executed by the JEMHC app user.

Allocating the Global BROWSE_USER permission

Navigate to System > Security > Global Permissions, at the bottom of the screen there is a section to Grant Permission, pick the Browse users and groups, and nominate a restricted membership group, that your workaround user will be a member of:

How to Generate an API Token

(info) Heads up, API tokens last a year and then expire, you will need to redo this every year.

How to Configure the JEMHC Workaround User With an API Token