Google Merchant Center stores product data for Google Shopping campaigns.

A product feed is a file containing product details used in shopping and catalog ads.

Dynamic product ads automatically show relevant products to interested users.

eCommerce advertising promotes products online to drive sales.

Lead generation advertising focuses on collecting user information such as emails or phone numbers.

Engagement advertising aims to increase likes, comments, shares, and interactions.

A campaign objective defines the main goal, such as traffic, engagement, leads, or sales.