4/20 delivers one of the largest spikes in traffic, transactions, and first-time shoppers you’ll see all year. But the retailers who win aren’t the ones who simply maximize that weekend. They’re the ones who systematically convert that surge into repeat revenue.

The difference comes down to what happens next.

This guide breaks down the essential Flows and Campaigns you should deploy immediately after 4/20 to retain new customers, increase lifetime value, and prevent that all-too-common post-holiday drop-off.

Why post-4/20 retention matters more than the event itself

A strong 4/20 can be misleading.

Revenue spikes often include:

• Pulled-forward demand from existing customers
• Discount-driven purchases with low loyalty
• One-time shoppers with no intent to return

Without a structured follow-up strategy, a large percentage of those new customers disappear within weeks.

The opportunity is simple: you already paid the cost to acquire them. Now you need to keep them.

The foundation: segment before you send

Before launching any Flows or Campaigns, segment your 4/20 audience into actionable groups:

• First-time shoppers (net-new customers)
• Reactivated customers (previously lapsed)
• Loyal customers (high-frequency or high spend)
• Deal-driven shoppers (low AOV outside promo windows)
• Category-specific buyers (flower, vapes, edibles, etc.)

Every flow below becomes significantly more effective when tailored to these segments.

Must-run flow #1: the post-4/20 welcome series (for new customers)

Goal: convert first-time buyers into repeat customers within 7–14 days.

This is your highest-impact flow. 

Most retailers send a single “thanks for coming in” message. That’s not enough.

Recommended structure:

Message 1 (1–2 days after purchase)

• Thank them for their visit
• Reinforce brand experience
• Highlight loyalty program and benefits

Message 2 (3–5 days after purchase)

• Personalized product recommendations based on purchase
• Introduce complementary categories
• Include soft incentive (not heavy discounting)

Message 3 (7–10 days after purchase)

• Strong return incentive (time-bound)
• Reinforce value: loyalty points, perks, exclusives

Why it works: you’re capturing intent while the experience is still fresh, guiding them into a second visit before they drift.

Must-run flow #2: the bounce-back offer flow

Goal: drive a second purchase quickly and intentionally.

This should run in parallel with your welcome flow but be more incentive-driven.

Key components:

• Trigger: 4/20 purchase
• Delay: 5–10 days post-visit
• Offer: Targeted, not generic

Examples:

• “Come back this week for 20% off your favorite category”
• “Double points on your next purchase”
• “Exclusive access to new drops based on what you bought”

Optimization tip: tie the offer to their actual purchase behavior, not a blanket promotion.

Must-run flow #3: the category follow-up flow

Goal: expand basket size and introduce product discovery.

Use purchase data to build category-specific journeys.

Examples:

• Vape buyer → introduce edibles or concentrates
• Flower buyer → highlight premium tiers or bundles
• Edibles buyer → suggest complementary formats

Structure:

• Education + recommendation
• Social proof or popularity
• Light incentive

Why it works: you’re not just bringing them back, you’re increasing their value.

Must-run flow #4: the early churn prevention flow

Goal: catch drop-off before it happens.

Many new customers will not return within 2–3 weeks unless prompted.

Trigger: no purchase within 14–21 days after 4/20

Messaging approach:

• Acknowledge the gap (“Haven’t seen you since 4/20…”)
• Reintroduce value (loyalty, convenience, new products)
• Provide a compelling reason to return now

This is one of the most overlooked Flows and one of the most effective.

Must-run Flow #5: the loyalty activation flow

Goal: turn one-time shoppers into members.

If a 4/20 shopper didn’t fully engage with your loyalty program, you’re leaving retention on the table.

Trigger:

• Purchased during 4/20
• Not enrolled or low engagement

Messaging should include:

• Points earned (or what they missed)
• Clear explanation of benefits
• Immediate reward for activating

Why it matters: Loyalty is your retention engine. This flow fuels it.

Must-run Campaign #1: the post-4/20 “what’s next” Campaign

Timing: within 3–5 days after 4/20.

This is your first broad communication after the event.

Focus:

• Transition from promo-heavy messaging
• Reframe your brand beyond discounts
• Highlight ongoing value (products, experience, loyalty)

Think of this as resetting the tone.

Must-run Campaign #2: segmented win-back Campaigns

Timing: 2–3 weeks post-4/20.

Instead of one large blast, break this into targeted Campaigns:

• First-time customers → strong return incentive
• Loyal customers → VIP perks or exclusives
• Lapsed customers → reactivation messaging

Key principle: relevance beats reach every time.

Must-run Campaign #3: product and inventory-driven Campaigns

Use your analytics to identify:

• Top-selling products during 4/20
• Categories with high conversion
• Underperforming inventory

Then build Campaigns that:

• Restock demand
• Promote trending items
• Clear slow-moving products

This ties your marketing directly to revenue performance.

How Loops extend your reach beyond Campaigns

Flows and Campaigns are how you follow up. Loops are how you stay visible before the next purchase even happens.

If Flows are your retention engine, Loops are your always-on demand capture layer.

After 4/20, shoppers don’t disappear. They continue browsing menus, opening retailer emails, and exploring products across digital touchpoints. The question is whether your brand is showing up when they do.

Loops place your products and promotions directly inside high-intent environments like:

• Ecommerce menus and category pages
• Text and email Campaign landing pages
• In-app browsing surfaces
• Terpli AI Sales Agent

This keeps your brand in front of customers while they are actively deciding what to buy.

Why Loops matter after 4/20

Customer behavior changes quickly after a major event:

• Shoppers move from reacting to promotions → browsing on their own
• Competition increases as brands try to maintain momentum
• New customers haven’t formed habits yet

Loops solve for this by:

• Maintaining consistent visibility
• Reinforcing products customers already showed interest in
• Showing up at the exact moment purchase decisions are made

The key advantage: staying inside the retailer ecosystem

Unlike traditional ads that pull users away, Loops keep shoppers inside the retailer environment.

That means:

• Higher intent
• Less friction
• Stronger conversion potential

You’re not interrupting the experience.  You’re enhancing it at the exact moment decisions are made.

How Loops, Flows, and Campaigns work together

This is where strategy turns into a system.

• Loops capture attention during browsing
• Flows respond to behavior in real time
• Campaigns reinforce and scale messaging

Instead of isolated sends, you create a continuous customer journey.

Example journey:

1. A 4/20 shopper browses a menu days later
2. They see a loop featuring a product they’re interested in
3. They click into the menu or product
4. A flow triggers based on that activity
5. They receive a personalized message that drives them back to purchase

You’re no longer relying on a single touchpoint. You’re guiding the customer across a connected experience.

What to measure

To understand performance, focus on:

• Repeat purchase rate within 30 days
• Revenue from 4/20-acquired customers
• Loyalty engagement and enrollment
• Campaign and flow attribution
• Deliverability and engagement (including failed sends)
• Loop impressions and click-through rates

This isn’t just about engagement. It’s about measurable revenue growth tied to retention.

Final thought

4/20 is not the finish line. It’s the starting point. The retailers who consistently outperform don’t just capitalize on the surge. They build systems that turn that surge into sustained growth.

Flows convert. Campaigns scale. Loops keep you visible in between. When all three are working together, you don’t just recover from the post-4/20 lull.