Summary

Users may encounter an issue where they cannot complete a Sprint on a specific board. When the "Complete Sprint" button is pressed, the following error appears:

Sprint can't be completed

You don't have permission to complete this sprint. Ask your admin to grant you "Manage sprints" permission.

Check the user's manage sprint permissions using REST API

If the original board where the sprint was created contains a complex JQL query that includes multiple projects, this issue will result.  You can refer to this article for more information on the topic.

Admins can request the following endpoint to obtain the Original Board ID, Original Board filter, and Project IDs where the user lacks the permissions to complete a Sprint. (Note: Please enter the user ID for the individual who is unable to complete the sprint and the corresponding Sprint ID.)

https://<your-domain>.atlassian.net/rest/greenhopper/latest/sprint/permissions/sprint?accountId=<XXX>&sprintId=<YYY>

Within the output, one of the returned data points is projectIdsWithoutManageSprintPermission.

This will include a list of project IDs your instance where the affected user lacks Manage Sprint permissions.

Assign manage sprint permissions in the related projects

Once you have the Project ID(s) from the previous output, you can retrieve the list of projects and their corresponding IDs using this API endpoint.

Assign the "Manage Sprint," "Schedule Issues," and "Edit Issues" permissions to the user for the project IDs.

Note: If the issue still persists after performing the steps above, please contact Support.