When you see and open a lead form in a video campaign on YouTube, some fields in the lead form are pre-filled when you're signed in to your YouTube account.
The pre-filled fields are:
- "Full name" (including "First name/Last name")
- "Phone number"
- "Zip/Postal code"
Each field is gathered from different sources. These sources include:
- Your Google account (for the "Full name" and "Email" fields)
- Your IP address (for the "Zip/Postal code" field)