GiftWorks has the ability to Merge duplicate donors
Go to Settings/Tools, Updates and Integration/Merge Donors
On this page, the left side donor is the Donor to Merge. This is the record that is the duplicate and that will be merged into the right donor. This donor will also be automatically permanently deleted after the merge.
The Donor to Keep on the right side of the screen is the donor record that will be kept and will receive the information from the left donor. This should be the donor that has the most correct information.
GiftWorks also offers a Find Duplicate Donors feature
Go to Settings/Tools, Updates and Integration/Find Duplicate Donors
This allows for you to search for potential duplicates in the database based on Display Name, First, Last, Organization, Address line 1, City, State, Zip, Phone and/or email. You can also choose to include or exclude affiliates in the search results. You can then merge straight from the search results.