The full website URL (e.g. https://www.example.com)
The ads campaign id.
The referrer (e.g. google, newsletter)
Marketing medium (e.g. cpc, banner, email)
Product, promo code, or slogan (e.g. spring_sale) One of campaign name or campaign id are required.
Identify the paid keywords
Use to differentiate ads
Use this URL in any promotional channels you want to be associated with this custom campaign.