Overview

When setting up a new Offer, a common question is: "What creatives should I upload to attract the most Partners?"

While Everflow supports a wide variety of file types, providing industry-standard formats makes it much easier for Partners (Affiliates/Publishers) to start promoting your Offer. This guide outlines the most commonly requested banner sizes and best practices for email creatives to help you get started.

Recommended Banner Ad Sizes (IAB Standards)

For banner ads, we recommend using the standard fixed-size ad units specified by the IAB (Interactive Advertising Bureau). These sizes are the most common across the web and are what most publishers expect to see. These specific units are recommended because studies show they contribute to the majority of ad revenue and work well across multiple screen sizes.

Here are the most common IAB-recommended fixed-size ad units and their specifications:

Key Terms:

• Initial Load: All files needed for the ad to first appear. This should be kept light for fast page loading.

• Subload: Additional files the ad can load after the main page content has finished loading (specifically, after the window.load event).

Best Practices for Email Creatives

For email marketing, Partners often prefer a set of assets they can use as a template rather than a single, rigid creative. This allows them to adapt the promotion for their specific audience (they should then send their version back to you for approval).

A good baseline package for email Partners includes:

• Creatives: 1 HTML creative and 1 image file.
• Copy: 10 different subject line options.
• Sender: 5 "friendly from" line options.

The goal is to provide compelling copy and images that entice a user to perform the desired action (e.g., make a sale, fill out a lead form, etc.).

Crucial Requirement for Email: Suppression Lists

The most important component for email marketing is a working suppression system. This is essential to ensure compliance (like CAN-SPAM) and protect both your brand and your Partners.

Before launching an email campaign, ensure you have:

1. A Working Suppression System: This is easiest to manage using a dedicated service. Everflow integrates directly with suppression list providers like Optizmo and Unsub Central to automate this process.
2. A Clear Process: Your team and your Partners must understand how the system works, why it's important, and how to use it to remain compliant.
3. A Physical Opt-Out Address: You must provide a physical mailing address (a P.O. Box is acceptable) where users can send letters to request to be suppressed from future promotions.

All Supported Creative Types

This article covers the recommended formats to maximize Partner adoption. For a complete technical list of all file types, extensions, and file size limits supported by Everflow, please see our main article Supported Creative Types & Sizes.