Connecting your Shopify store to LettrLabs lets you trigger handwritten cards and printed postcards straight off real Shopify order and customer activity — first purchases, repeat buyers, VIP spenders, and more — without any code. This guide walks through connecting your store, understanding what happens behind the scenes, and connecting additional stores if you run more than one.
Before you start
A Shopify store, and Owner or Admin permissions on that store (you need permission to install apps).
Make sure you're logged into the correct Shopify store's admin in your browser before you begin — if you manage more than one store, it's easy to authorize the wrong one by accident.
Be logged into your LettrLabs account.
Step 1: Start the Shopify connection
From your LettrLabs dashboard, open the Automations area and go to Manage Integrations.
Find the Shopify card and open it.
Click Setup (or Setup Now). LettrLabs generates a secure installation request and redirects your browser to Shopify.
Step 2: Approve the install in Shopify
If you aren't already logged into the store you want to connect, Shopify will prompt you to log in first.
Shopify will show you the permissions the LettrLabs app is requesting — this covers read access to your store's order and customer data so LettrLabs can evaluate automation filters. Review and click Install to authorize.
Note: if you close the window or decline the install partway through, nothing is connected — just click Setup again to retry.
Step 3: Confirm the connection
Once you approve the install, Shopify redirects you back to LettrLabs automatically. You'll briefly see a "Setting up Shopify..." screen while LettrLabs finishes linking the store, then a confirmation that your store is Connected. From there you can jump straight into creating your first Shopify automation. If something goes wrong during setup, you'll see an error message instead — simply return to Manage Integrations and click Setup again to retry.
How your Shopify data syncs
Once connected, LettrLabs pulls in your store's historical order data in the background — this can take a little while to complete for stores with a long order history, and your store will show as still processing until it finishes. After that initial backfill, LettrLabs checks your Shopify order and customer data on a recurring daily schedule (not an instant, real-time push), so there can be up to a day of lag between something happening in Shopify and it being reflected in your automation filters. Keep that in mind for time-sensitive campaigns.
Connecting additional Shopify stores
If you manage more than one storefront, you can connect all of them to the same LettrLabs account and run separate automations for each:
Log out of the Shopify admin you just connected, or use an incognito window / separate browser profile, and log into the next store you want to connect.
In LettrLabs, go to Automations > Manage Integrations > Shopify and choose the option to add another store (e.g. Add New Store / Setup New Store).
Follow the same install flow in that store's Shopify admin.
Once connected, every linked store appears with a Connected status, and when you build an automation you'll choose which store it applies to from a Store dropdown. Each store keeps its own filters, templates, send limits, and schedule — they run independently of each other. A tip: include the store or brand name in your automation names (e.g. "Brand A — Winback 90 Days") so things stay easy to tell apart as you add more.
Disconnecting a store (revoke access)
Go to Automations > Manage Integrations > Shopify and find the store you want to disconnect.
Choose Revoke and confirm.
This deauthorizes LettrLabs on Shopify's side for that store and deactivates any automations tied to it. To reconnect later, repeat the setup steps above for that store.
What's next
With your store connected, you're ready to build your first Shopify automation — see Shopify Best Practices: Winback & Retargeting Campaigns for use-case-driven guidance on winback, retention, and retargeting campaigns, including how to set up a holdout group to measure lift.