Subscribe: Newsletter and Mailing List Events

The total number of times visitors subscribed to a newsletter or mailing list, tracked by the Upstack pixel.

Formula

Subscribe = COUNT ( Subscribe Events )

Formula Components

Metric	Definition
COUNT	Aggregation function that counts each subscribe event
Subscribe Events	Events triggered when a visitor subscribes to a newsletter or mailing list

Metadata
Type	Number
Data Source	Upstack Pixel
Aggregation	Count

Example

Your Shopify store recorded 1,847 subscribe events this month from paid campaigns:

Channel	Subscribes	Share
Meta Ads	1,016	55%
Google Ads	554	30%
TikTok Ads	277	15%

How It Works

Upstack counts subscribe events fired by your pixel when visitors opt in to your newsletter, mailing list, or email marketing. Each subscription event increments the count, providing visibility into how effectively your campaigns drive email list growth.

When to Use

Scenario	Action
Subscribes increasing	Scale campaigns driving email signups
Subscribes dropping	Check subscription forms, popups, or pixel setup
Comparing channels	Identify which platforms drive the most email signups
Building audiences	Create lookalike audiences from email subscribers

Metric	Relationship
Sign Up	Account registration events (vs email subscription)
Lead	Broader lead capture including subscribes
Conversions	Total attributed conversions across all event types

See all Conversions metrics →