Log in as a fundraiser and visit Projects.
To close your active fundraising project (to prevent any new donations), under the Active tab, click on the vertical dots ⋮ icon next to your project name, then on Close project to move your project to the Closed tab. (Note: This action can't be reversed).
To archive your closed fundraising project (to remove the project from your overall fundraising profile's public view), under the Closed tab, click on the vertical dots ⋮ icon next to your project name, then on Archive project. (Note: This action can't be reversed).