How to Grow Your Opt-In List During BFCM (Without Feeling Spammy)

Summary
The most effective brands treat Black Friday and Cyber Monday not just as sales events, but as strategic inflection points to deepen customer relationships — starting with the opt-in. Amid the noise of discount culture, growing a high-intent subscriber list requires value-led creativity: exclusive perks, well-timed pop-ups, and integrated SMS/email incentives that feel like access, not intrusion. Rather than default to aggressive tactics, brands are encouraged to think like hosts — offering early entry, VIP experiences, and viral giveaways that convert curiosity into connection. When influencers become trust brokers and every digital (or physical) touchpoint nudges toward a sign-up, list-building becomes an ecosystem, not an afterthought. The deeper challenge, however, is maintaining that momentum post-BFCM, turning each opt-in from a fleeting click into a loyal, long-term relationship.

Black Friday and Cyber Monday aren’t just about cart-crashing discounts, they’re your golden hour to build a thriving, high-intent audience that sticks around long after the sale banners come down.

During BFCM, shoppers are in discovery mode. They’re actively hunting for deals and brands worth their inbox space. This is your moment to turn casual browsers into loyal subscribers: people you can nurture, convert, and retain. Here’s how to grow your opt-in list in a way that feels good (to you and your future customer).

1. Make It Worth Their While

Let’s face it, “10% off” just doesn’t cut through the noise anymore. People are bombarded with offers. If you want them to hand over their email or phone number, it better feel like a win.

Think:

  • Early access (e.g., “Get first dibs 24 hours before the public”)
  • Stacked rewards (e.g., “Sign up for $15 off and free shipping”)
  • Subscriber-only drops (e.g., “Limited edition, only for our list”)

Make your sign-up perks exclusive, exciting, and clearly better than what’s available to non-subscribers. That way, opting in feels like joining a VIP club — not just another promo list.

2. Get Strategic With Your Pop-Ups

Yes, pop-ups still work — if they’re done right. The key is timing, context, and a little personality.

Types to try:

  • Exit-intent pop-ups to catch cart abandoners
  • Time-delayed pop-ups for warm browsers
  • Scroll-triggered pop-ups that appear after meaningful engagement

Design matters too. Keep it clean, mobile-friendly, and emotionally driven. Highlight the benefit (“Snag $20 off!”), not just the ask. Bonus points if you pair it with a slick BFCM-specific landing page where all your best deals and sign-ups live.

3. Tag-Team With Text

Email is powerful. Text is instant. Combine them, and you’ve got a direct line to shoppers during the biggest retail weekend of the year.

Offer a two-step opt-in with built-in incentive:

  • Email = 10% off
  • Email + SMS = 20% off + early access

Just be upfront with how you’ll use their info (TCPA/GDPR = non-negotiable). Once opted in, use SMS for real-time updates like:

  • “Flash sale just dropped!”
  • “Only 3 hours left to grab your deal!”

Make every text feel helpful, not pushy.

4. Go Viral With Giveaways

Everyone loves free stuff, especially when it’s exclusive, seasonal, or just plain fun.

Run a BFCM-themed giveaway where entry = email or SMS opt-in. Then supercharge reach with viral mechanics:

  • “Refer friends for bonus entries”
  • “Share on IG for a chance to win more”

Want to sweeten the pot? Make it a subscriber-only contest. You’ll grow your list, build buzz, and start relationships with value at the center.

5. Splash Your CTA Everywhere

If you’re only promoting your opt-in on your website, you’re missing out. Your audience is scattered, so your messages should be too.

Places to plug your BFCM sign-up:

  • Social bios, stories, and posts
  • Influencer shoutouts with unique links
  • Paid ads with “exclusive early access” hooks
  • Post-purchase confirmation pages
  • Even physical packaging or receipts if you’re brick-and-mortar

Consistency wins. Use the same CTA and visual language across touchpoints to build recognition and drive clicks.

6. Use Influencers to Drive Opt-Ins (Not Just Sales)

Influencer campaigns don’t have to end at awareness. Use creators to fuel your list growth too.

Give influencers their own unique sign-up links or codes and have them direct followers to sign up for early access or a subscriber-only perk. It’s more authentic than a hard sell — and it turns one-time viewers into long-term connections.

7. Test, Tweak, Repeat

BFCM moves pretty fast — so should you. Monitor your list growth in real time. Ask:

  • Which offer is pulling in the most sign-ups?
  • Which pop-up is getting ignored?
  • Where are people dropping off?

Don’t be afraid to A/B test creative, timing, or CTA language. And once they’re in, keep the momentum going with a killer welcome series that sets the tone for a long, rewarding relationship.

Start now. Grow smart.

Your BFCM opt-in strategy isn’t just about collecting emails, it’s about creating moments that matter. Think of every new subscriber as someone raising their hand to say, “I’m interested.” Give them something valuable in return, keep your promises, and you’ll build a list that pays off long after Cyber Monday fades from memory.

Start now. Grow smart. And watch your list become one of your most powerful marketing assets.

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Author

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Jennifer Yeadon

Jennifer Yeadon is the Director of Content at Wunderkind, where she wrangles words, untangles strategy, and occasionally talks to her coffee. She’s spent her career helping brands sound more human in a digital world and secretly believes a great subject line can change everything.

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