Why Your Ads and Email Marketing Teams Must Work Together

The Cost of Siloing Your Marketing Channels

Most ecommerce brands treat email marketing as an isolated channel. The email team gets handed a brief, builds their campaigns, sets up their flows, and sits in their own corner. The paid media team operates somewhere completely different, running Meta or Google ads without any visibility into what subscribers are saying.

For the next step, see Email Marketing vs Social Media: Why You Must Own Your Audience.

That is a mistake.

When your paid ads and retention teams do not talk, you burn money on acquisition. Your email marketing team usually owns the sign-up form on your site, which means they sit on the most valuable customer intelligence your business collects. If that data stays locked inside your email software, your ads team is flying blind.

Capturing Zero-Party Data on the Sign-Up Form

When someone lands on your site and opts in for 10% off, you should not just ask for their email address. You should ask them why they are here, what they are shopping for, and who they are buying for. This is zero-party data, and it is gold.

We use tools like Formtoro on top of Klaviyo to run multi-step interactive forms. It is not cheap, costing around $400 a month, so I generally only recommend it once a brand crosses roughly $100,000 in monthly revenue. But once you have the volume, the data you get back reshapes your entire growth strategy.

With this setup, you can ask granular questions without hurting conversion rates:

• Who are you shopping for today?
• What product style or material matters most to you?
• What specific feature is non-negotiable for your purchase?

Matching Survey Responses to Actual Revenue

Here is where most brands get survey data wrong. They look at what everyone answers and assume that is what the market wants. But the opinions of non-buyers do not matter.

If 100 people opt in and only 50 make a purchase, I only care about what those 50 paying customers selected. You must tie form responses directly to order history. In one of our client accounts selling walking canes, 67.1% of respondents selected men's canes, and the highest-spending cohort overwhelmingly cared about two things: wooden classic designs and a comfortable grip.

That single insight told us exactly what products generate the highest revenue per subscriber, and more importantly, why people buy them.

How Email Insights Fix Paid Ad Creative

Once you know why paying customers buy, you do not keep that insight inside your retention team. You hand it directly to your ad buyers and creative team.

In the walking cane example, our ad team immediately knew what creative to produce. Instead of generic product shots, they built ads showcasing wooden canes with hook copy focusing heavily on the comfortable grip. We were not guessing what might convert on Meta, because real paying customers had already told us what mattered.

The result is simple. Your ad messaging aligns with actual buyer motivation, which drops your customer acquisition cost (CAC), raises your ROAS, and makes your top-of-funnel spend significantly more efficient.

For more detail, see A Simple Campaign Strategy to Turn Subscribers into Buyers.

Feeding Product and Lifecycle Teams

The feedback loop does not stop at paid social. The exact same data shapes your email automations, campaign calendar, and product development.

On the email side, we use those responses to tag profiles instantly and send them down specific flow trigger splits. If a subscriber says they want a comfortable grip, their welcome flow focuses on ergonomic design features rather than generic brand fluff.

For the product team, this data tells them where to double down. If your highest-value customers care most about grip comfort, your next product run needs to accentuate that feature across the line.

Final Thoughts

Your email marketing team should be synced across every single touchpoint in your marketing engine. Because retention owns the sign-up form, they hold the clearest picture of what paying customers care about. Share that data with your ads team, and you will scale past your current revenue ceiling much faster.

If you want to turn your opt-in forms into a customer research engine that drives higher revenue, take a look at how we build high-converting sign-up forms for growing ecommerce brands.

For a related breakdown, see What an Eight-Figure Store's Sign-Up Form Setup Looks Like.