45+ Best cross-sell email subject lines

Cross-selling works wonders for online businesses, just like McDonald's suggesting fries with your meal. Imagine getting an email recommending products that complement what you're looking at or have in your cart—like a helpful friend who knows your tastes. Businesses can use past purchases to recommend items you'll love.

Here are some cross-sell email subject lines to boost your sales:

Best cross-sell email subject lines for ecommerce

Ever noticed how companies anticipate your next interest? They analyze your past purchases and suggest similar or complementary items. For example, after buying a laptop, you might get emails suggesting accessories like a mouse or headphones.

Need ideas for your cross-sell emails? Check out the subject lines below for inspiration:

Upgrade your style today!

Discover more, shop smart

New arrivals for you

Your favorites expanded

Ready to elevate?

Exciting finds await

Enhance your collection

[Brand] recommends: must-haves

Find your perfect match

Curated just for you

Perfect pairings for you

New and exciting choices

Discover hidden gems

What could make your collection better?

Discover even more style pearls

Cross-sell email subject lines for SaaS

Customers buying your basic plan is a good start, but how do you expand? Promote add-ons to enhance their experience further.

Use these subject lines to highlight the benefits in your cross-sell emails and boost your sales:

Discover more ways to [Brand Name]

Your next level of [Product]

Unveil exciting additions now

[First Name], explore new possibilities

Upgrade your [Brand Name] experience

Elevate your game with [Product]

Time for a [Brand Name] refresh

Unlock [Product] enhancements

Don't miss these add-ons

Level up your [Brand Name] journey

Explore new features now

Exclusive upgrades inside

[First Name], upgrade your game

Take more, get more out of [Brand Name]

Now, the only way is up!

Cross-sell email subject lines for service providers

If your customer enjoys one of your services, it’s an excellent opportunity to help them discover another. For example, a face massage might be pleasant, but they don’t consider that it becomes divine with the addition of a foot massage.

Sell this idea to your customers using trusty cross-sell emails, but first, choose your winning subject line:

Elevate your experience with [Service]

Your upgraded [Service] awaits

Discover more with [Brand]

Exclusive perks for [First Name]

Spice up your routine with [Service]

Explore new horizons with [Brand]

Level up your [Service] game

Discover the power of [Service]

[Service] made for you, [First Name]

[Brand] invites you to try [Service]

[First Name], discover with [Brand]

[Brand] - your [Service] guide

[Service] mastery by [Brand]

[Brand] invites you to [Service] wonders

How do you make [Service] better for you?

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Open Sesame: Subject lines to get your emails read

Your perfect email won't matter if it won't be opened. Want some inspiration? Check these robust subject lines, designed for maximum opens of your promotional emails.
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