Overview
Email Address Attribution allows you to track and associate email addresses with Partners for managing performance tied to subscriptions, residual commissions, and repeat purchases.
When a conversion pixel or Postback captures an email address, all future conversions linked to that email can be automatically attributed to a Partner based on the selected attribution model:
- First Partner Attribution: The first Partner to generate a conversion with that email continues to receive credit for all future conversions.
- Last Partner Attribution: Ownership shifts to the most recent Partner responsible for a conversion using that email.
Setup: Step-By-Step


Use Case Scenarios
Scenario 1: Subscription Model (Recurring Payments)
Use case: Pay a Partner for ongoing subscription renewals or rebills.
How It Works:
- The initial conversion captures the consumer’s email.
- When a rebill event occurs, your subscription system sends a webhook with:
- nid= (Network ID)
- oid= or aid= (Offer or Advertiser ID)
- email= (Consumer’s email)
Example Rebill Event Postback:
The system automatically attributes the rebill event to the Partner who generated the original conversion.
This allows continuous commission payments (e.g., a $15 CPA for every renewal).

Scenario 2: Partial Commissions on Repeat Purchases
Use case: Attribute a lower commission for repeat purchases made by an existing customer.
How It Works:
To set this up, create a custom payout rule that identifies repeat customers. Use an Adv1 - 5 parameter to pass a unique identifier signaling that the conversion is from a returning customer.
For example:
- Adv1=repeat → Indicates a repeat purchase.
- Adv1={a purchase ID > 1} → If your checkout system tracks purchase counts, this can dynamically flag returning customers.


In this example, when the conversion script (below) detects the value "repeat" in Adv1 and the email address is passed to the tracking script, Everflow automatically attributes the sale to the original Partner, awarding them a 3% commission.
This process requires no new tracking link or coupon code from the Partner—commissions are applied even if the customer returns organically or through re-marketing efforts.
For instance, if the initial conversion earned the Partner a one-time 70% commission, they will now receive 3% on future purchases, such as a $99.99 repeat order.
Example Conversion Script for Repeat Purchase Attribution:
Adding Clicks & Email Addresses via CSV Import
If you already have Partner, Offer, and Email mappings in your CRM, you can import them into Everflow via CSV.
CSV Format:
How to Import a CSV File:
[CSV Upload Template] → Ensure the file is saved as a single-tab .csv before uploading.
Postback Reversal by Email Address
If a transaction needs to be reversed, you can use a Reversal Postback to automatically remove conversions associated with an email address.