Dynamic vs. Static discount codes in Klaviyo: When to use each one for maximum impact

Discount codes can be a powerful conversion tool, but only when they’re used strategically.

And yet, it’s still far too common to see brands, even big ones, defaulting to basic, shareable codes like WELCOME10.

Here’s the truth: not all discount codes are created equal. Choosing between dynamic and static codes can make or break your email strategy.

Let’s break it down.

What are dynamic discount codes?

Dynamic codes are unique, one-time-use discount codes generated automatically by Klaviyo. Each code is exclusive to the individual subscriber and can be set to expire after one use or after a certain date.

✅ When to use dynamic codes:

• To prevent code-sharing abuse (e.g., on public coupon sites)

• To personalise your incentives (based on behaviour or segmentation)

• To automate discounts inside email flows like:

  • Welcome series

  • Abandoned cart

  • Post-purchase nurture

  • VIP or loyalty sequences

Dynamic codes help you keep your promotions targeted, personalised, and protected from misuse. They're the go-to for automated flows where control and personalisation matter.

What are static discount codes?

Static codes are universal, everyone uses the same code (e.g., SPRINGSALE, PAYDAY20, etc.). These are usually created in Shopify and can be applied sitewide or to specific collections.

✅ When to use static codes:

• During flash sales or seasonal promotions

• To share widely on email and social media

• To create urgency for a limited-time deal

• For promotions where visibility matters more than exclusivity

Best for:

• Black Friday/Cyber Monday

• Holiday campaigns

• Payday offers

• Clearance events

• Influencer or affiliate campaigns

Static codes are perfect when you want a highly visible, limited-time offer to spread far and wide.

How to use discounts strategically (not randomly)

Throwing out discount codes at random won’t increase your conversions, it’ll just train your customers to wait for the next one.

What will work? Matching the right type of code with the right point in the customer journey.

That means:

• A dynamic welcome discount to convert new subscribers

• A static site-wide sale code for your Black Friday campaign

• A personalised win-back code to re-engage lapsed customers

• Use dynamic codes in your flows for personalised, protected offers.

• Use static codes in your campaigns for high-visibility promos.

  And above all, use discounting strategically, not as a crutch.

Not sure where to add discounts in your flows?

That’s where strategic flow mapping comes in. With Clicks & Flows we’ll:

✅ Map out your entire customer journey
✅ Identify where discounts will actually drive conversions (without over-discounting)
✅ Build or optimise your flows so you're using Klaviyo to its full potential