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Data direction: This is a destination — Upstack sends event and conversion data out to this platform via server-side APIs.
Sendlane is connected through Upstack Flows, the product that handles event delivery to marketing automation platforms. Upstack identifies visitors that Shopify and Sendlane’s native tracking miss — turning anonymous browse and cart abandonment sessions into actionable Sendlane contacts. This means more abandoned cart workflows fire, more browse abandonment messages send, and you recover revenue that would otherwise be invisible.

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How It Works

When a visitor takes an action on your store, Upstack:
  1. Captures the event through the Upstack Pixel and matches it to a known visitor profile using Upstack’s identity resolution.
  2. Looks up the contact in Sendlane by email or Sendlane contact ID to verify they exist.
  3. If the contact is found, enriches the event with cart/product data and sends it to Sendlane as a custom event.
  4. The custom event can trigger Sendlane automations like abandoned cart flows, browse abandonment sequences, and post-purchase campaigns.
The result: abandoned cart and browse abandonment workflows fire for visitors that Shopify’s native tracking misses.
Sendlane events are only sent for contacts that already exist in Sendlane. This ensures your automations target real, opt-in subscribers and keeps your deliverability healthy.

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Required Credentials

To connect Sendlane to Upstack, you need two credentials from your Sendlane account:
CredentialDescriptionWhere to Find
API Access TokenAuthenticates API requests to SendlaneSendlane → Settings → API
Integration TokenIdentifies custom events for your integrationSendlane → Integrations → Custom Integration
1

Generate API Access Token

In Sendlane, go to Settings → API and generate a new API token. Copy the token — you’ll need it in the next step.
2

Create Custom Integration

In Sendlane, go to Integrations → Custom Integration and create a new integration. Copy the Integration Token provided.
3

Configure in Upstack

In the Upstack dashboard, go to Destinations → Add Destination → Sendlane and paste both credentials.

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Event Mapping

Upstack forwards the following events to Sendlane as custom events:
Upstack EventSendlane EventKey PropertiesUse Case
ViewContentproduct-viewed-upstackifiedproduct_id, product_name, product_img_url, variant_idBrowse abandonment flows
AddToCartadded-to-cart-upstackifiedline_items, subtotal, total, currencyAbandoned cart flows
InitiateCheckoutcheckout-started-upstackifiedcheckout_id, line_items, subtotal, total, currencyCheckout abandonment flows
Purchaseorder-placed-upstackifiedorder_id, line_items, total, currency, discountsPost-purchase flows, win-back
SubscriptionRecurringPurchasesubscription-recurring-purchase-upstackifiedorder_id, line_items, total, currencySubscription renewal flows
Each event includes line item details such as product_id, variant_id, sku, product_name, quantity, item_price, product_img_url, and product_url.

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Best Practices

Build abandonment automations on Upstack events. Create Sendlane automations triggered by the -upstackified events (e.g., added-to-cart-upstackified) to capture visitors that your standard tracking misses.
Use cross-flow exclusions. If you have both standard Sendlane automations and Upstack-powered automations, add exclusion filters to prevent the same customer from receiving duplicate messages.
Disable overlapping integrations. If you previously used another attribution tool that sends similar events to Sendlane, disable those integrations before enabling Upstack to avoid duplicate events and messages.

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FAQ

Sendlane’s native Shopify integration only sees visitors that Shopify has identified — typically logged-in customers or shoppers who have entered an email at checkout. Upstack’s identity resolution matches anonymous sessions to known customer profiles using cookies, click IDs, and cross-session behavioral data, then sends those events to Sendlane. This lets your abandoned cart and browse abandonment workflows fire for many more visitors.
Upstack only sends events for contacts that already exist in Sendlane. If the visitor’s email isn’t found in your Sendlane account, the event is skipped. This keeps your Sendlane account clean and ensures events only target real subscribers.
Possibly. If both Upstack and Sendlane’s native integration track the same event types, Sendlane may record both. The recommended approach is to disable the corresponding events in Sendlane’s native integration for any event types Upstack is configured to send.
The Sendlane API token must have permission to read contacts and send custom events. Use a token with the minimum scope required — Upstack does not need account management or billing permissions.
Once the destination is active, events typically appear in Sendlane within 5 minutes. You can verify by triggering a test action on your store (such as adding a product to cart) and checking the contact’s activity feed in Sendlane.

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Troubleshooting

If events are showing in the Upstack Live Event Stream but not arriving in Sendlane:Steps to fix:
  1. Confirm the Sendlane destination shows Active (green) in the Upstack dashboard
  2. Verify your API Access Token is valid and has not expired
  3. Check that the contact exists in Sendlane — events are only sent for existing contacts
  4. Verify the Integration Token matches the custom integration you created in Sendlane
  5. If the destination status is red, disconnect and reconnect with fresh credentials
If events are arriving in Sendlane but not triggering your automations:Steps to fix:
  1. Verify your automation is set to trigger on the correct event name (e.g., added-to-cart-upstackified, not Added to Cart)
  2. Check that the automation is active and not paused
  3. Ensure the contact meets any segment or filter conditions on the automation
  4. Review the contact’s activity feed to confirm the event was received
For additional troubleshooting beyond Sendlane-specific issues, see Troubleshooting: Events Not Reaching Destination.

Data Enrichment

How Upstack Enrichment improves visitor identification — the foundation of Flows recovery.

Identity Resolution

How Upstack ID connects anonymous sessions to known customers with email addresses.

Klaviyo Destination

Similar email/SMS marketing integration for Klaviyo users.

Events Not Reaching Destination

End-to-end diagnostic guide when events aren’t arriving at any destination.