Five Klaviyo flows with a postcard step

Two routes from Klaviyo to a printed card

Both routes give every card its own discount code and QR code, run TouchDrop's address checks and suppression rules, and attribute orders back to the campaign.

Set up the webhook step

1. In TouchDrop, create a campaign and choose Webhook Trigger as the campaign type. Add the artwork and the offer, then save. The Trigger URL appears on the campaign page. TouchDrop reviews each new campaign once before its first cards print.
2. In Klaviyo, drag the Webhook action into the flow at the step where the card belongs. Klaviyo requires two-step authentication and the Manager, Admin or Owner role to add a webhook.
3. Paste the Trigger URL as the destination URL. The URL carries the campaign's token, so treat it like a password. If it leaks, rotate it on the campaign page and paste the new one into the flow.
4. Under Headers, add Content-Type with the value application/json.
5. Paste this JSON body:

{
  "email": "{{ person.email }}",
  "first_name": "{{ person.first_name|default:'' }}",
  "last_name": "{{ person.last_name|default:'' }}"
}

With your Shopify store connected to TouchDrop, that body is enough: TouchDrop takes the postal address from the customer's Shopify orders. Without a connected store, send the address from the Klaviyo profile as well:

{
  "email": "{{ person.email }}",
  "first_name": "{{ person.first_name|default:'' }}",
  "last_name": "{{ person.last_name|default:'' }}",
  "address": {
    "address1": "{{ person|lookup:'$address1'|default:'' }}",
    "address2": "{{ person|lookup:'$address2'|default:'' }}",
    "city": "{{ person|lookup:'$city'|default:'' }}",
    "state": "{{ person|lookup:'$region'|default:'' }}",
    "postcode": "{{ person|lookup:'$zip'|default:'' }}",
    "country": "AU"
  }
}

Klaviyo sends webhooks as POST requests and counts any 2xx response as a success. TouchDrop answers 202 when it accepts the person and 422 when the address cannot produce a card. Klaviyo files errors it will not retry in the webhook's Skipped queue, so check that queue after the first few days. The campaign page lists recent triggers as processed, pending or skipped, with the reason for each skip. The integration API guide lists every field and response code.

Set up a segment campaign

1. Build the segment in Klaviyo.
2. In TouchDrop, connect Klaviyo under Settings, Integrations. Create a campaign of the matching type, such as Win-Back or Klaviyo Segment, pick your segment under Audience Sources and set Send Mode to Automated.
3. Check the segment's size in Klaviyo before you launch. The first run mails everyone already in it; after that, TouchDrop picks people up as they join.

How long the card takes

TouchDrop prints and lodges automated cards in a weekly run, and Australia Post's published delivery time for regular letters is 3 to 7 business days from lodgement. Set Klaviyo's time delays around the customer's decision, and expect the card to land some days after the step that sent it.

1. Win-back

For customers who bought before and have gone quiet. The card goes to the people your win-back email did not bring back.

2. Post-purchase

For new customers, to win the second order. The card arrives after the first order has been used.

3. VIP and loyalty

For your best customers, as a thank-you with early access or a loyalty reward.

4. Lapsed subscriber

For subscription brands, to win back a cancelled subscription. Your subscription app sends the cancellation to Klaviyo as a metric. Recharge, for example, sends Subscription cancelled on ReCharge and Recharge subscription reactivated.

5. Browse and cart abandonment

For shoppers who left without buying. Mail the carts worth a card and let email handle the rest.

TouchDrop needs a postal address for each person: from your connected Shopify store's orders, an address TouchDrop already holds, or the address fields in the webhook body. A first-time visitor with no order and no address on their Klaviyo profile cannot get a card, so browse abandonment works best on past customers.

Send TouchDrop activity back to Klaviyo

With Klaviyo connected, TouchDrop adds events to each recipient's existing Klaviyo profile: TouchDrop Postcard In Production, TouchDrop Postcard Sent, TouchDrop QR Scanned, TouchDrop Code Redeemed and TouchDrop Attributed Order. Postcard Sent also sets three profile properties: TouchDrop Last Postcard Sent, TouchDrop Estimated Delivery and TouchDrop Last Campaign. TouchDrop never creates a Klaviyo profile. If your connection only allows reading, TouchDrop asks you to reconnect with Klaviyo and choose Allow.

• Filter on TouchDrop Postcard Sent to hold an email offer back from people who already have the card.
• Start a date-property flow from TouchDrop Estimated Delivery to send an email when the card should be in the letterbox.
• Build a segment of people who scanned the QR code and have not ordered.

Before you switch a flow on

1. Make sure the Klaviyo user who adds the webhook has two-step authentication on.
2. Run the flow on your own profile and check the trigger shows as processed on the TouchDrop campaign page.
3. Know the default sending rules: TouchDrop skips anyone it mailed in the last 45 days and caps each person at 3 cards in 90 days, across campaigns.
4. To measure lift, leave a random slice of the segment out of the flow and compare its orders with the mailed group's.

Frequently asked questions

Sources

Klaviyo and Recharge details checked on 22 October 2026. TouchDrop details describe the product as it works on that date.

• Klaviyo developer docs: How to add a webhook action to a flow
• Klaviyo Help Center: Understand flow triggers and filters
• Recharge Help Center: Using Recharge metrics to trigger Klaviyo flows

Related reading

• Klaviyo direct mail with TouchDrop
• Klaviyo to postcard: segment sync, flow webhooks, CSV and API compared
• Integration API: trigger postcards from your own system
• Win-back postcard campaigns
• Suppression rules