Once reviewers have finished the review, the moderator can close it. If the author needs to resume work on a closed review, they can simply click Reopen and renew the review process.
Closing the review means the end of the code review process.
To close a review, click Close Review. Note, this option is available for a review moderator only.
Note: In case the Simple review workflow option is enabled, a review will close automatically, as soon as all the reviewer(s) have completed the review process.