min read

How to use Klaviyo to Send Handwritten Notes

IgnitePOST’s Shopify App allows you to send robotically-handwritten, real pen & ink cards based on actions users take on your Shopify shop! One of the most powerful features of the new update is the ability to target Klaviyo segments using handwritten cards instead of emails.

IgnitePOST’s Shopify App allows you to send robotically-handwritten, real pen & ink cards based on actions users take on your Shopify shop!  The latest update to the app adds a plethora of functionality that allows shops to trigger handwritten cards based on configurable rules. We wrote about the full feature set of the Shopify App in our app announcement blog post, so if you’re interested in seeing all the capabilities available, feel free to head over there.

One of the most powerful features of the new update is the ability to target Klaviyo segments using handwritten cards instead of emails. The best part? The app is FREE to install and set up is amazingly fast … you can be up and running in less than 5 mins.

Below, we share some tips, insights, examples, and case studies… so if you’re interested in seeing exactly how you can leverage the power of handwritten notes, read on.



First, Klaviyo’s dynamic segmenting abilities are amazingly powerful.  By leveraging the data already contained within your Klaviyo account, you can get extremely specific about who you target with handwritten notes as well as when those handwritten cards are sent.

Second, handwritten notes have been shown to be 30X more effective than email outreach and 10X more effective than Direct Mail (we have some Case Studies and examples further down in this article). This gives you a winning recipe for success. By combining the power of Klaviyo segmentation, with the effectiveness of the handwritten note, you’re able to unlock a brand new channel that will jump your business forward by an order of magnitude.


Ok, so the big question is ‘How does it Work’? The good news is that it’s amazingly simple to set up.

To send handwritten cards to Klaviyo segments in real-time:


1. Install the IgnitePOST Shopify App (it’s FREE) and click ‘Setup Post Purchase Flow’

IgnitePOSTAppPersonalizeCardMessageScreen Shot 2021-02-02 at 8.30.10 AM.png

2. Type out the card details,  personalize the message and add any card image you want!

Screen Shot 2021-03-18 at 9.52.00 AM.png

3. Configure the settings you want to use to determine when a card should be sent. To use a Klaviyo segment, just click the checkbox that says ‘Only send a card if the customer belongs to the specified Klaviyo segment ID’

Finding your Klayvio segment ID is simple. Visit your Klaviyo Dashboard, click on ‘Lists and Segments’ in the left-hand menu, and then click the segment you want to target with handwritten notes.

In the top row, you’ll see a link that says ‘Settings’. Click this link and then copy/paste the Segment ID into the segment ID text box in the IgnitePOST app.

To find your API key, just click on your name in the upper right corner of the Klaviyo dashboard and click ‘Account’. From this screen, you can click ‘Settings’-> ‘API Keys’.

If you have an existing API key, you can copy/paste this key.  Otherwise, click the ‘Create Private API Key’ button, name your key, and then copy/paste the key into the IgnitePOST dashboard text box that says ‘Klaviyo API Key’.

Screen Shot 2021-03-17 at 6.43.26 PM.png
Screen Shot 2021-03-17 at 6.43.47 PM.png

Want to target an entire Klaviyo Segment with handwritten notes in bulk? No problem!

Not using Shopify? No problem!

Click here to see a full step-by-step guide showing how you can download a Klaviyo segment, upload the list right to IgnitePOST’s dashboard, and send personalized handwritten notes to the entire list.


There are a variety of ways to incorporate handwritten cards into your outreach strategy. Here are some Case Studies & examples from other customers who have seen amazing results with a number of different use cases.


When was the last time you had a 68% conversion rate? Pure Plates, a healthy meal delivery service, used IgnitePOST’s handwritten cards to target their VIP Klaviyo Segment and was able to achieve a 68% conversion rate, which yielded an 11X ROI! We wrote in detail about this use case in our Pure Plates Case Study.

“At Pure Plates, we’ve worked hard to build a loyal customer base. We value their business and wanted our outreach to top members to reflect our respect and appreciation. Sending emails or any type of digital outreach didn’t seem to carry the weight or meaning that we wanted. So we opted to use IgnitePost to send very personal handwritten cards to our VIP members, and they responded by making the campaign one of the best ROI initiatives we’ve ever done.

— Tim T., Director of Marketing Operations, Pure Plates

Whistlekick - Increase Customer Reviews

Whistlekick is an eCommerce brand specializing in martial arts apparel and sparring gear. Using personalized handwritten cards, they are able to turn customers into repeat buyers and raving fans. The simple handwritten gestures they’ve put in place have paid dividends in the form of increased reviews, referrals, and more brand awareness:

Screen Shot 2021-03-18 at 10.00.28 AM.png


Want to see a real example of one of our handwritten cards for yourself?!  Then you’re in luck!  You can actually have one of our robots write out a personalized note just for you and send it to your doorstep. Just open the IgnitePOST Shopify App, and click on the link that says ‘Send Yourself a FREE Sample’. It’s that easy.

If you’re not convinced yet, below are some examples of scenarios that are now possible with just a few clicks! If you want help configuring any of these, feel free to reach out to us anytime and schedule some time to help you optimize your setup:


Request Product Reviews

We all know that in today’s society, reviews are everything. In fact, shops live, thrive, or die based on positive reviews. Now, Shopify shop owners can leverage the power of handwritten notes to follow up with customers after a purchase is made and ask the customer to come back and leave a review.

I’ve been an Amazon customer for over a decade, and I’ve almost never left a review for any product, despite getting thousands of automated emails suggesting I leave a review. The one time I did leave a review was when the business reached out with a personalized handwritten note asking for my support in the form of a review. Guess which store got my support and my review?

New Customer Thank You

It’s always great when you get a new customer! What better way to say ‘Thank You’ than with a memorable, handwritten card? You can even take this opportunity to suggest a similar product and take advantage of this cross-sell opportunity.

Repeat Customer Thank You

If someone buys from you once, they may or may not like your product. If someone purchases your product multiple times, chances are they LOVE your product! Showing your appreciation with a handwritten note instead of a generic automated email will pay dividends for you. Customers that make multiple purchases should also be the people you ask to leave reviews (because they most likely love your product), so don’t miss out on the chance to guarantee a review with a handwritten request.

VIP Customer Appreciation

Today’s society is all about giving customers a white-glove level of service and making them feel like VIPs. The secret to success is the ability to roll out this VIP white-glove level of service at massive scale. IgnitePOST allows you to do just that! You can now send specialized, handwritten cards to your VIP customers at exactly the right time.

Churn Prevention

It’s well known that keeping your existing customers is much easier than acquiring new customers. This is especially true for subscription services… if your customers churn, it becomes difficult to grow your business. One of the most effective uses of IgnitePOST’s service is reaching out to prevent churn. As an example: if you know customers typically remain in a subscription with you for 6 months before churning, reaching out with a VIP handwritten card at the 5-month mark with a compelling offer to extend their subscription has been shown to produce great results.

Product Cross-Sell

If a customer makes a purchase from you, chances are you know other products they would be interested in based on what they bought. By using a handwritten note touchpoint to suggest a complementary product, it gives the customer the confidence that you have taken the time and done the research to know that the suggested product would be a great fit for them!

First Purchase Anniversary

Similar to a birthday, sending customers a handwritten note on their first anniversary is a great way to re-engage with users and celebrate. Coupling the personalized handwritten note with a special Anniversary offer is a sure way to incentivize that customer to come back and make another purchase!

All of the above scenarios are now available for Shopify Stores to set up with just a few clicks!  Check it out, and as always if you have any questions, don’t hesitate to contact us!

IgnitePOST Team
Verified writer

Get expert insights for real mail campaigns

Everything you need to launch, run and scale handwritten card mail campaigns. Subscribe today!

Awesome! You are now subscribed to receive insights.
Sorry, please try again or email us:
TRUSTED BY 1000+ Brands

Ready to create your first magic moment?🚀

Start using IgnitePOST today. It's free to signup!

No contracts, no commitment and unbelievable support.