You will need the Profile Activate permission to perform this action, at one of the person's campuses. It is campus-scoped, so a campus override can change it at one campus. See People for what the permission covers, and Campuses and organizations in Version 8 for how campus access works.
There are multiple ways to unarchive a person profile.
From Their Profile
You can find the person you need to unarchive by typing their name into the top search bar in the upper right of the screen.
– OR –
Go to Contacts in the left-hand navigation menu. Click on Filter, type in the name, and set the Archived filter to Yes to show archived profiles.
Once you find the person, click on their name to open the profile. Click on the blue Actions button in the upper right area, and select Unarchive. Or you can choose Archived below the person's name.
A pop-up will appear asking you to enter the reason this person is being unarchived. Complete the required fields. Click Save to complete the action.
The profile will now be active again, and the unarchive reason will be added as a note to their profile.
In Bulk
Unarchiving in bulk needs three permissions: Reporting to run the query, People Mass Change to run the mass change, and Profile Activate to unarchive. Reporting is account-wide, so it applies at every campus and a campus override cannot take it away. People Mass Change and Profile Activate are campus-scoped, and people at campuses you cannot reach are dropped from the change rather than refusing it. See Reporting and People for what these permissions cover, and Campuses and organizations in Version 8 for how campus access works.
Navigate to the People Query Builder in the left-hand menu: Reporting > Query Builder > People.
Build a query that returns the people you want to unarchive. Make sure to remove the filter “Is Archived = No” so that archived individuals are included. You can add other filters as needed.
Run the query to see the results by clicking on Run Query. Use the checkboxes to select the appropriate individuals. Click on Mass Change from the Bulk Actions menu above the results area.
In the pop-up that appears, under Perform an action on profile, choose Unarchive profile (found under the Status section). Enter the required reason for unarchiving.
Optionally, you can choose to unarchive their family members as well.
Click Save. You will be taken back to the Perform Mass Change pop-up. Click on the Update Profiles button.
A confirmation box will appear asking if you’re sure you want to proceed. Enter the number of profiles to confirm and click Continue. The selected profiles will be unarchived, and the reason provided will be added as a note on each profile.