You can archive or delete Rate Groups that you don't need any more. This can only be done by Admins.
In Organizational Settings > Budget > Rates, click the three-dot menu for the Rate Group. Click the Archive Rate Group or Delete Rate Group item.
Archived Rate Groups are moved to the bottom of the list of Rate Groups.
A Rate Group can be archived even when it is used in a Project. The Project will keep its Rate Group Rates.
If deleting a Rate Group, a confirmation modal is shown. Click the Yes button to confirm the deletion.
Note: If your Rate Group is being used by a Project or a Phase, it will be archived.
If the Rate Group is deleted, it is removed from the list of Rate Groups.