In most instances, no. You'll use your Google Account username and password to sign in to your DoubleClick products, except in the following situations:
- Exporting data from MediaVisor to DFA — You need to use your legacy DoubleClick for Advertisers (DFA) sign-in information. Learn more.
- DART API — You need to sign in with your legacy DoubleClick username and password. Learn more.
- DFA Tools — You need to sign in with your legacy DFA username and password. Learn more.
- DSM WebServices — You need to sign in with your legacy DSM username and password. Learn more.
- Boomerang — If your legacy DoubleClick password expires, you'll need to update it to regain access to Boomerang. Learn more.
