Archiving hides a project from your active project lists without deleting any of its content. Archived projects can be unarchived at any time.
Workspace owners and admins, plus the project's owner, can archive.
Go to Settings → Projects.
Open the project you want to archive.
Choose Archive.
To restore an archived project, switch to the Archived filter in Settings → Projects and choose Unarchive.
Archiving is reversible and preserves all documents, conversations, members, and workflows. If you want to remove a project permanently, see Delete a project.