Automation rules referencing large project roles fail to complete

Summary

An automation rule is reporting Some Errors when run. The error in the automation audit log is:

• If the role has 50 or more users, only the first 50 users will be used.

Diagnosis

Check that the number of users listed in a project role is fewer than 50. If any users or groups are listed as default project role members (located at https://site-name.atlassian.net/secure/project/ViewProjectRoles.jspa), they can also be factored into this count.

Cause

An automation rule can only reference a role that contains 50 users or fewer.

Solution

Reference Jira user groups instead of users or project roles in the automation rule. A note appears under the Criteria field displaying the role limit when a project role is referenced (see below).

Automation rule referencing a project role

Automation rule referencing a user group

Additional Information:

User condition not properly checked when a project role has more than 50 default members: AUTO-1066 - User condition doesn't work if the role has more than 50 members