Klaviyo ShipStation Integration: 8 Simple Steps to Turn Shipping Data Into Retention Wins

Blog

September 16, 2025

Klaviyo ShipStation Integration: 8 Simple Steps to Turn Shipping Data Into Retention Wins

Blog

September 16, 2025

Klaviyo ShipStation Integration: 8 Simple Steps to Turn Shipping Data Into Retention Wins

Blog

September 16, 2025

Turn shipping into retention wins. Learn how to integrate Klaviyo with ShipStation, sync data, automate flows, and boost post-purchase loyalty.

Most DTC brands lose customers right after checkout because buyers feel left in the dark. No updates, no clarity — just worry. That silence hurts trust, drives refund requests, and increases “Where’s my order?” tickets.

The Klaviyo + ShipStation integration fixes this gap. By syncing fulfilment data into Klaviyo, you can send proactive shipping emails and SMS, cut support load, and turn the delivery stage into a powerful driver of repeat revenue. Instead of letting silence erode loyalty, you transform updates into retention wins.

What This Guide Covers:

  • Why the integration matters for retention

  • Verified 8-step setup process

  • Synced data points & their use cases

  • Post-purchase flow examples

  • Retention best practices

  • Troubleshooting and optimisation

Why Integrate Klaviyo and ShipStation?

Managing customer expectations after purchase is critical. When you integrate Klaviyo with ShipStation, you move beyond simple fulfilment updates to proactive, branded communication. This builds trust, reduces support requests, and creates opportunities to re-engage customers at every shipping milestone.

Benefits of Klaviyo ShipStation Integration

  • Real-time shipping context: Sync statuses like Awaiting Shipment, On Hold, Shipped, and Cancelled to power alerts and flows.

  • Ask for reviews at the right time: Trigger requests only after delivery, not before — pair this with strategies from our Post-Purchase Email Examples. 

  • Segment by status: Target “recently shipped”, “on hold,” or “cancelled” groups with tailored help or offers, similar to tactics in our Klaviyo RFM Segments. 

  • Cut support load: Transactional updates reduce WISMO tickets and keep customers calm.

Retention impact: Helpful updates turn waiting time into loyalty.

Pre-Integration Checklist

Rushing into setup without preparation often leads to broken syncs or missing data. That’s why you need a checklist before connecting Klaviyo and ShipStation. By confirming access levels, API keys, and data mapping in advance, you’ll save time and avoid troubleshooting later.

Essentials for Setup:

  • Klaviyo account (admin access): 

You need admin rights in Klaviyo to install the ShipStation app, view synced shipping events, and build delivery-triggered flows.

  • ShipStation account with V1 API support: 

Klaviyo’s guide states that the integration uses the V1 API and requires Scale – Gold or Accelerate. If plan names differ in your region, ensure your plan supports V1 API and key rotation. 

  • API key and secret by Account Owner: 

The ShipStation account owner must verify their email, generate API credentials, and set expiry (3, 6, or 12 months). Store keys securely and rotate as needed.

  • Map statuses to flows: 

Decide which messages to send for each shipping status—like confirmation for “Awaiting,” delay notices for “On Hold,” tracking for “Shipped,” and apology offers for “Cancelled.”

  • Know the sync windows: 

Klaviyo imports the last 90 days of shipping data at setup, then syncs updates every ~30 minutes to trigger flows in near real time. 

For broader integration planning, see our Shopify x Klaviyo Guide.

How to Set Up Klaviyo ShipStation Integration

The integration process isn’t complicated, but every step matters for accuracy. Following the setup flow ensures that ShipStation pushes the right data into Klaviyo without delays. Once connected, you’ll have a reliable pipeline of fulfilment events that power your retention campaigns.

Step-by-Step Guide

1. ShipStation → Account → API Settings → V1 API. Open the API page. 


ShipStation account with V1 API.png  Alt text: "ShipStation API Settings showing V1 API keys, creation dates, expiration dates, and an expired key warning."
Source: 1teamsoftware

2. Generate and verify keys: Click Generate, verify via email, then generate again and set expiry.


Generate and verify keys.png  Alt text: "Generate API Key screen with key expiration options for 12, 6, or 3 months and a green Generate button."
Source: ShipStation

3. Store keys securely: Keep a record for rotation; ShipStation allows rotating V1 keys. 


Store keys securely.png  Alt text: "API Key Created window displaying API and Secret Key with copy icons and a Done button."
Source: ShipStation

4. Klaviyo → Integrations → Explore apps → ShipStation → Install. 


Klaviyo Integration with trustpilot.png Alt text:  "Screen showing Klaviyo setup to integrate with ShipStation. Users are prompted to enter ShipStation API key and API secret to connect accounts."
Source: Klaviyo


5. Enter API key and secret → Connect to ShipStation. Approve permissions.

6. Confirm success: You will see a success message in Klaviyo.

7. Verify events: In Analytics → Metrics → All Integrations → ShipStation, open a status metric like Order Awaiting Shipment and check Activity Feed.

8. Compare counts and time zones: If Order Shipped totals do not match, align time zones in both tools.

For deeper troubleshooting, combine this with techniques from our Klaviyo Event Tracking.

ShipStation Metrics Synced to Klaviyo & Their Use Cases

Not all data is created equal — what you sync determines what you can automate. ShipStation passes order statuses like shipped, cancelled, or on hold into Klaviyo, and each can trigger a flow. Understanding these metrics gives you the building blocks for smarter segmentation and engagement.

Synced ShipStation metrics

  • Order Awaiting Shipment: Ready to ship. Send prep and next-steps info.

  • Order Awaiting Payment: If supported by your store, send a clear, friendly payment reminder.

  • Order On Hold: Explain the delay and give an ETA or promise an update.

  • Order Shipped: Fires when a label is printed. Include tracking. If you mark shipped manually or by a third party, Klaviyo will not receive this status.

  • Order Cancelled: Apologise, share next steps, and offer a win-back.


Synced ShipStation metrics.png  Alt text: "List of ShipStation order statuses including awaiting payment, awaiting shipment, cancelled, on hold, and shipped."
Source: Klaviyo

Use these statuses to:

  • Trigger helpful updates (awaiting, on hold, shipped).

  • Protect revenue with payment reminders.

  • Recover goodwill after cancellations with a clear plan to return.

These statuses underpin your retention flows. For segmentation ideas, check 3 Klaviyo Segmentation Strategies.

Post-Purchase Flows You Can Automate

The post-purchase stage is one of the most critical moments in the customer lifecycle. By pairing ShipStation fulfilment data with Klaviyo automations, you can send timely updates that ease customer worries and open the door to repeat purchases. These flows make your brand look proactive while driving extra revenue from every delivery.

Recommended Automated Flows

  • Shipping Confirmation Email/SMS – Triggered when an order ships; includes tracking info and a “what’s next” message.

  • Review Request Flow – Send 5–7 days after confirmed delivery to collect product reviews or UGC.

  • Re-engagement Offer – Deliver a discount or product recommendation shortly after fulfilment to encourage the next order.

  • Delay Notification Flow – If ShipStation flags a delay, trigger an apology message and consider offering a small incentive.

For advanced strategies, explore 8 Essential Klaviyo Flows.

Best Practices for Retention & Loyalty

Integrating Klaviyo and ShipStation lets you go beyond basic shipping updates. Done right, each fulfilment touchpoint becomes a chance to build trust, reduce support queries, and drive repeat sales.

Optimisation Tips

  • Personalise with Dynamic Data – Add names, order numbers, and product details from ShipStation into Klaviyo emails to make updates feel personal, not generic.

  • Use SMS for Urgent Updates – Trigger SMS for delays or delivery confirmations where speed matters most. (Klaviyo SMS Flows).

  • Segment by Status & Region – Create segments for “Order Shipped,” “Order Delayed,” or longer transit regions to send proactive updates.

  • Add Value in Every Email – Pair shipping confirmations with product recommendations, loyalty reminders, or referral CTAs to turn routine updates into sales opportunities.

  • Track & Optimise Flows – Use Klaviyo flow analytics to measure engagement and revenue from shipping-triggered emails; A/B test subject lines and timing to improve results. Use Klaviyo analytics and A/B testing to optimise.

Troubleshooting Common Issues

Even strong integrations can hit snags. Knowing how to quickly spot and fix errors keeps your shipping flows reliable and your customers reassured. Here are the most common Klaviyo–ShipStation integration issues and how to resolve them:


Troubleshooting Issues for Klaviyo–ShipStation integration.png  Alt text: "Table of common Klaviyo–ShipStation integration issues with columns for problem, cause, and solution."

FAQs

1. Can I use ShipStation integration for international shipping updates?

  • Yes, but ensure regional carriers update statuses properly, as some third-party fulfilment tools may not sync all data.

2. How often does ShipStation sync with Klaviyo?

  • Every ~30 minutes by default. Delays can occur if API keys expire.

3. Can I combine ShipStation data with loyalty or referral campaigns?

  • Yes. Pair shipping-triggered flows with loyalty reminders or referral CTAs to increase repeat orders.

4 What if my brand uses multiple ShipStation accounts?

  • Currently, Klaviyo only supports connecting one ShipStation account per Klaviyo account. Multi-brand setups require separate Klaviyo accounts or a custom API solution.

5. Will ShipStation statuses affect segmentation in Klaviyo?

  • Yes. You can segment customers by statuses like “Awaiting Shipment,” “On Hold,” or “Cancelled,” allowing you to send targeted updates and win-back offers.

Conclusion

Most post-purchase emails miss the mark because they’re generic and late. By integrating Klaviyo with ShipStation, you turn every fulfilment update into a moment that reassures your customers and invites them back. 

Whether it’s a simple “Your order shipped” SMS or a re-engagement offer after delivery, these flows reduce churn and create loyal repeat buyers. With a clean setup, proactive flows, and the best practices outlined here, you’ll turn shipping data into a true retention driver.

Key Takeaways

  • Real-time sync: ShipStation pushes fulfilment events into Klaviyo every ~30 minutes.

  • Smarter flows: Trigger confirmations, reviews, and win-backs at the right time.

  • Segmentation power: Target customers by shipping status or delivery region.

  • Reduced support load: Automated updates cut WISMO tickets.

  • Retention impact: Personalised updates build trust and drive repeat orders.

Are your post-purchase emails failing to drive repeat revenue?

Your Klaviyo ShipStation integration might be underutilised. Let our experts audit your setup and show you how to trigger delivery-based flows that boost retention and ROI. Click here to schedule a free audit and let us map out your ideal post-purchase flow.




Most DTC brands lose customers right after checkout because buyers feel left in the dark. No updates, no clarity — just worry. That silence hurts trust, drives refund requests, and increases “Where’s my order?” tickets.

The Klaviyo + ShipStation integration fixes this gap. By syncing fulfilment data into Klaviyo, you can send proactive shipping emails and SMS, cut support load, and turn the delivery stage into a powerful driver of repeat revenue. Instead of letting silence erode loyalty, you transform updates into retention wins.

What This Guide Covers:

  • Why the integration matters for retention

  • Verified 8-step setup process

  • Synced data points & their use cases

  • Post-purchase flow examples

  • Retention best practices

  • Troubleshooting and optimisation

Why Integrate Klaviyo and ShipStation?

Managing customer expectations after purchase is critical. When you integrate Klaviyo with ShipStation, you move beyond simple fulfilment updates to proactive, branded communication. This builds trust, reduces support requests, and creates opportunities to re-engage customers at every shipping milestone.

Benefits of Klaviyo ShipStation Integration

  • Real-time shipping context: Sync statuses like Awaiting Shipment, On Hold, Shipped, and Cancelled to power alerts and flows.

  • Ask for reviews at the right time: Trigger requests only after delivery, not before — pair this with strategies from our Post-Purchase Email Examples. 

  • Segment by status: Target “recently shipped”, “on hold,” or “cancelled” groups with tailored help or offers, similar to tactics in our Klaviyo RFM Segments. 

  • Cut support load: Transactional updates reduce WISMO tickets and keep customers calm.

Retention impact: Helpful updates turn waiting time into loyalty.

Pre-Integration Checklist

Rushing into setup without preparation often leads to broken syncs or missing data. That’s why you need a checklist before connecting Klaviyo and ShipStation. By confirming access levels, API keys, and data mapping in advance, you’ll save time and avoid troubleshooting later.

Essentials for Setup:

  • Klaviyo account (admin access): 

You need admin rights in Klaviyo to install the ShipStation app, view synced shipping events, and build delivery-triggered flows.

  • ShipStation account with V1 API support: 

Klaviyo’s guide states that the integration uses the V1 API and requires Scale – Gold or Accelerate. If plan names differ in your region, ensure your plan supports V1 API and key rotation. 

  • API key and secret by Account Owner: 

The ShipStation account owner must verify their email, generate API credentials, and set expiry (3, 6, or 12 months). Store keys securely and rotate as needed.

  • Map statuses to flows: 

Decide which messages to send for each shipping status—like confirmation for “Awaiting,” delay notices for “On Hold,” tracking for “Shipped,” and apology offers for “Cancelled.”

  • Know the sync windows: 

Klaviyo imports the last 90 days of shipping data at setup, then syncs updates every ~30 minutes to trigger flows in near real time. 

For broader integration planning, see our Shopify x Klaviyo Guide.

How to Set Up Klaviyo ShipStation Integration

The integration process isn’t complicated, but every step matters for accuracy. Following the setup flow ensures that ShipStation pushes the right data into Klaviyo without delays. Once connected, you’ll have a reliable pipeline of fulfilment events that power your retention campaigns.

Step-by-Step Guide

1. ShipStation → Account → API Settings → V1 API. Open the API page. 


ShipStation account with V1 API.png  Alt text: "ShipStation API Settings showing V1 API keys, creation dates, expiration dates, and an expired key warning."
Source: 1teamsoftware

2. Generate and verify keys: Click Generate, verify via email, then generate again and set expiry.


Generate and verify keys.png  Alt text: "Generate API Key screen with key expiration options for 12, 6, or 3 months and a green Generate button."
Source: ShipStation

3. Store keys securely: Keep a record for rotation; ShipStation allows rotating V1 keys. 


Store keys securely.png  Alt text: "API Key Created window displaying API and Secret Key with copy icons and a Done button."
Source: ShipStation

4. Klaviyo → Integrations → Explore apps → ShipStation → Install. 


Klaviyo Integration with trustpilot.png Alt text:  "Screen showing Klaviyo setup to integrate with ShipStation. Users are prompted to enter ShipStation API key and API secret to connect accounts."
Source: Klaviyo


5. Enter API key and secret → Connect to ShipStation. Approve permissions.

6. Confirm success: You will see a success message in Klaviyo.

7. Verify events: In Analytics → Metrics → All Integrations → ShipStation, open a status metric like Order Awaiting Shipment and check Activity Feed.

8. Compare counts and time zones: If Order Shipped totals do not match, align time zones in both tools.

For deeper troubleshooting, combine this with techniques from our Klaviyo Event Tracking.

ShipStation Metrics Synced to Klaviyo & Their Use Cases

Not all data is created equal — what you sync determines what you can automate. ShipStation passes order statuses like shipped, cancelled, or on hold into Klaviyo, and each can trigger a flow. Understanding these metrics gives you the building blocks for smarter segmentation and engagement.

Synced ShipStation metrics

  • Order Awaiting Shipment: Ready to ship. Send prep and next-steps info.

  • Order Awaiting Payment: If supported by your store, send a clear, friendly payment reminder.

  • Order On Hold: Explain the delay and give an ETA or promise an update.

  • Order Shipped: Fires when a label is printed. Include tracking. If you mark shipped manually or by a third party, Klaviyo will not receive this status.

  • Order Cancelled: Apologise, share next steps, and offer a win-back.


Synced ShipStation metrics.png  Alt text: "List of ShipStation order statuses including awaiting payment, awaiting shipment, cancelled, on hold, and shipped."
Source: Klaviyo

Use these statuses to:

  • Trigger helpful updates (awaiting, on hold, shipped).

  • Protect revenue with payment reminders.

  • Recover goodwill after cancellations with a clear plan to return.

These statuses underpin your retention flows. For segmentation ideas, check 3 Klaviyo Segmentation Strategies.

Post-Purchase Flows You Can Automate

The post-purchase stage is one of the most critical moments in the customer lifecycle. By pairing ShipStation fulfilment data with Klaviyo automations, you can send timely updates that ease customer worries and open the door to repeat purchases. These flows make your brand look proactive while driving extra revenue from every delivery.

Recommended Automated Flows

  • Shipping Confirmation Email/SMS – Triggered when an order ships; includes tracking info and a “what’s next” message.

  • Review Request Flow – Send 5–7 days after confirmed delivery to collect product reviews or UGC.

  • Re-engagement Offer – Deliver a discount or product recommendation shortly after fulfilment to encourage the next order.

  • Delay Notification Flow – If ShipStation flags a delay, trigger an apology message and consider offering a small incentive.

For advanced strategies, explore 8 Essential Klaviyo Flows.

Best Practices for Retention & Loyalty

Integrating Klaviyo and ShipStation lets you go beyond basic shipping updates. Done right, each fulfilment touchpoint becomes a chance to build trust, reduce support queries, and drive repeat sales.

Optimisation Tips

  • Personalise with Dynamic Data – Add names, order numbers, and product details from ShipStation into Klaviyo emails to make updates feel personal, not generic.

  • Use SMS for Urgent Updates – Trigger SMS for delays or delivery confirmations where speed matters most. (Klaviyo SMS Flows).

  • Segment by Status & Region – Create segments for “Order Shipped,” “Order Delayed,” or longer transit regions to send proactive updates.

  • Add Value in Every Email – Pair shipping confirmations with product recommendations, loyalty reminders, or referral CTAs to turn routine updates into sales opportunities.

  • Track & Optimise Flows – Use Klaviyo flow analytics to measure engagement and revenue from shipping-triggered emails; A/B test subject lines and timing to improve results. Use Klaviyo analytics and A/B testing to optimise.

Troubleshooting Common Issues

Even strong integrations can hit snags. Knowing how to quickly spot and fix errors keeps your shipping flows reliable and your customers reassured. Here are the most common Klaviyo–ShipStation integration issues and how to resolve them:


Troubleshooting Issues for Klaviyo–ShipStation integration.png  Alt text: "Table of common Klaviyo–ShipStation integration issues with columns for problem, cause, and solution."

FAQs

1. Can I use ShipStation integration for international shipping updates?

  • Yes, but ensure regional carriers update statuses properly, as some third-party fulfilment tools may not sync all data.

2. How often does ShipStation sync with Klaviyo?

  • Every ~30 minutes by default. Delays can occur if API keys expire.

3. Can I combine ShipStation data with loyalty or referral campaigns?

  • Yes. Pair shipping-triggered flows with loyalty reminders or referral CTAs to increase repeat orders.

4 What if my brand uses multiple ShipStation accounts?

  • Currently, Klaviyo only supports connecting one ShipStation account per Klaviyo account. Multi-brand setups require separate Klaviyo accounts or a custom API solution.

5. Will ShipStation statuses affect segmentation in Klaviyo?

  • Yes. You can segment customers by statuses like “Awaiting Shipment,” “On Hold,” or “Cancelled,” allowing you to send targeted updates and win-back offers.

Conclusion

Most post-purchase emails miss the mark because they’re generic and late. By integrating Klaviyo with ShipStation, you turn every fulfilment update into a moment that reassures your customers and invites them back. 

Whether it’s a simple “Your order shipped” SMS or a re-engagement offer after delivery, these flows reduce churn and create loyal repeat buyers. With a clean setup, proactive flows, and the best practices outlined here, you’ll turn shipping data into a true retention driver.

Key Takeaways

  • Real-time sync: ShipStation pushes fulfilment events into Klaviyo every ~30 minutes.

  • Smarter flows: Trigger confirmations, reviews, and win-backs at the right time.

  • Segmentation power: Target customers by shipping status or delivery region.

  • Reduced support load: Automated updates cut WISMO tickets.

  • Retention impact: Personalised updates build trust and drive repeat orders.

Are your post-purchase emails failing to drive repeat revenue?

Your Klaviyo ShipStation integration might be underutilised. Let our experts audit your setup and show you how to trigger delivery-based flows that boost retention and ROI. Click here to schedule a free audit and let us map out your ideal post-purchase flow.




Turn shipping into retention wins. Learn how to integrate Klaviyo with ShipStation, sync data, automate flows, and boost post-purchase loyalty.

Most DTC brands lose customers right after checkout because buyers feel left in the dark. No updates, no clarity — just worry. That silence hurts trust, drives refund requests, and increases “Where’s my order?” tickets.

The Klaviyo + ShipStation integration fixes this gap. By syncing fulfilment data into Klaviyo, you can send proactive shipping emails and SMS, cut support load, and turn the delivery stage into a powerful driver of repeat revenue. Instead of letting silence erode loyalty, you transform updates into retention wins.

What This Guide Covers:

  • Why the integration matters for retention

  • Verified 8-step setup process

  • Synced data points & their use cases

  • Post-purchase flow examples

  • Retention best practices

  • Troubleshooting and optimisation

Why Integrate Klaviyo and ShipStation?

Managing customer expectations after purchase is critical. When you integrate Klaviyo with ShipStation, you move beyond simple fulfilment updates to proactive, branded communication. This builds trust, reduces support requests, and creates opportunities to re-engage customers at every shipping milestone.

Benefits of Klaviyo ShipStation Integration

  • Real-time shipping context: Sync statuses like Awaiting Shipment, On Hold, Shipped, and Cancelled to power alerts and flows.

  • Ask for reviews at the right time: Trigger requests only after delivery, not before — pair this with strategies from our Post-Purchase Email Examples. 

  • Segment by status: Target “recently shipped”, “on hold,” or “cancelled” groups with tailored help or offers, similar to tactics in our Klaviyo RFM Segments. 

  • Cut support load: Transactional updates reduce WISMO tickets and keep customers calm.

Retention impact: Helpful updates turn waiting time into loyalty.

Pre-Integration Checklist

Rushing into setup without preparation often leads to broken syncs or missing data. That’s why you need a checklist before connecting Klaviyo and ShipStation. By confirming access levels, API keys, and data mapping in advance, you’ll save time and avoid troubleshooting later.

Essentials for Setup:

  • Klaviyo account (admin access): 

You need admin rights in Klaviyo to install the ShipStation app, view synced shipping events, and build delivery-triggered flows.

  • ShipStation account with V1 API support: 

Klaviyo’s guide states that the integration uses the V1 API and requires Scale – Gold or Accelerate. If plan names differ in your region, ensure your plan supports V1 API and key rotation. 

  • API key and secret by Account Owner: 

The ShipStation account owner must verify their email, generate API credentials, and set expiry (3, 6, or 12 months). Store keys securely and rotate as needed.

  • Map statuses to flows: 

Decide which messages to send for each shipping status—like confirmation for “Awaiting,” delay notices for “On Hold,” tracking for “Shipped,” and apology offers for “Cancelled.”

  • Know the sync windows: 

Klaviyo imports the last 90 days of shipping data at setup, then syncs updates every ~30 minutes to trigger flows in near real time. 

For broader integration planning, see our Shopify x Klaviyo Guide.

How to Set Up Klaviyo ShipStation Integration

The integration process isn’t complicated, but every step matters for accuracy. Following the setup flow ensures that ShipStation pushes the right data into Klaviyo without delays. Once connected, you’ll have a reliable pipeline of fulfilment events that power your retention campaigns.

Step-by-Step Guide

1. ShipStation → Account → API Settings → V1 API. Open the API page. 


ShipStation account with V1 API.png  Alt text: "ShipStation API Settings showing V1 API keys, creation dates, expiration dates, and an expired key warning."
Source: 1teamsoftware

2. Generate and verify keys: Click Generate, verify via email, then generate again and set expiry.


Generate and verify keys.png  Alt text: "Generate API Key screen with key expiration options for 12, 6, or 3 months and a green Generate button."
Source: ShipStation

3. Store keys securely: Keep a record for rotation; ShipStation allows rotating V1 keys. 


Store keys securely.png  Alt text: "API Key Created window displaying API and Secret Key with copy icons and a Done button."
Source: ShipStation

4. Klaviyo → Integrations → Explore apps → ShipStation → Install. 


Klaviyo Integration with trustpilot.png Alt text:  "Screen showing Klaviyo setup to integrate with ShipStation. Users are prompted to enter ShipStation API key and API secret to connect accounts."
Source: Klaviyo


5. Enter API key and secret → Connect to ShipStation. Approve permissions.

6. Confirm success: You will see a success message in Klaviyo.

7. Verify events: In Analytics → Metrics → All Integrations → ShipStation, open a status metric like Order Awaiting Shipment and check Activity Feed.

8. Compare counts and time zones: If Order Shipped totals do not match, align time zones in both tools.

For deeper troubleshooting, combine this with techniques from our Klaviyo Event Tracking.

ShipStation Metrics Synced to Klaviyo & Their Use Cases

Not all data is created equal — what you sync determines what you can automate. ShipStation passes order statuses like shipped, cancelled, or on hold into Klaviyo, and each can trigger a flow. Understanding these metrics gives you the building blocks for smarter segmentation and engagement.

Synced ShipStation metrics

  • Order Awaiting Shipment: Ready to ship. Send prep and next-steps info.

  • Order Awaiting Payment: If supported by your store, send a clear, friendly payment reminder.

  • Order On Hold: Explain the delay and give an ETA or promise an update.

  • Order Shipped: Fires when a label is printed. Include tracking. If you mark shipped manually or by a third party, Klaviyo will not receive this status.

  • Order Cancelled: Apologise, share next steps, and offer a win-back.


Synced ShipStation metrics.png  Alt text: "List of ShipStation order statuses including awaiting payment, awaiting shipment, cancelled, on hold, and shipped."
Source: Klaviyo

Use these statuses to:

  • Trigger helpful updates (awaiting, on hold, shipped).

  • Protect revenue with payment reminders.

  • Recover goodwill after cancellations with a clear plan to return.

These statuses underpin your retention flows. For segmentation ideas, check 3 Klaviyo Segmentation Strategies.

Post-Purchase Flows You Can Automate

The post-purchase stage is one of the most critical moments in the customer lifecycle. By pairing ShipStation fulfilment data with Klaviyo automations, you can send timely updates that ease customer worries and open the door to repeat purchases. These flows make your brand look proactive while driving extra revenue from every delivery.

Recommended Automated Flows

  • Shipping Confirmation Email/SMS – Triggered when an order ships; includes tracking info and a “what’s next” message.

  • Review Request Flow – Send 5–7 days after confirmed delivery to collect product reviews or UGC.

  • Re-engagement Offer – Deliver a discount or product recommendation shortly after fulfilment to encourage the next order.

  • Delay Notification Flow – If ShipStation flags a delay, trigger an apology message and consider offering a small incentive.

For advanced strategies, explore 8 Essential Klaviyo Flows.

Best Practices for Retention & Loyalty

Integrating Klaviyo and ShipStation lets you go beyond basic shipping updates. Done right, each fulfilment touchpoint becomes a chance to build trust, reduce support queries, and drive repeat sales.

Optimisation Tips

  • Personalise with Dynamic Data – Add names, order numbers, and product details from ShipStation into Klaviyo emails to make updates feel personal, not generic.

  • Use SMS for Urgent Updates – Trigger SMS for delays or delivery confirmations where speed matters most. (Klaviyo SMS Flows).

  • Segment by Status & Region – Create segments for “Order Shipped,” “Order Delayed,” or longer transit regions to send proactive updates.

  • Add Value in Every Email – Pair shipping confirmations with product recommendations, loyalty reminders, or referral CTAs to turn routine updates into sales opportunities.

  • Track & Optimise Flows – Use Klaviyo flow analytics to measure engagement and revenue from shipping-triggered emails; A/B test subject lines and timing to improve results. Use Klaviyo analytics and A/B testing to optimise.

Troubleshooting Common Issues

Even strong integrations can hit snags. Knowing how to quickly spot and fix errors keeps your shipping flows reliable and your customers reassured. Here are the most common Klaviyo–ShipStation integration issues and how to resolve them:


Troubleshooting Issues for Klaviyo–ShipStation integration.png  Alt text: "Table of common Klaviyo–ShipStation integration issues with columns for problem, cause, and solution."

FAQs

1. Can I use ShipStation integration for international shipping updates?

  • Yes, but ensure regional carriers update statuses properly, as some third-party fulfilment tools may not sync all data.

2. How often does ShipStation sync with Klaviyo?

  • Every ~30 minutes by default. Delays can occur if API keys expire.

3. Can I combine ShipStation data with loyalty or referral campaigns?

  • Yes. Pair shipping-triggered flows with loyalty reminders or referral CTAs to increase repeat orders.

4 What if my brand uses multiple ShipStation accounts?

  • Currently, Klaviyo only supports connecting one ShipStation account per Klaviyo account. Multi-brand setups require separate Klaviyo accounts or a custom API solution.

5. Will ShipStation statuses affect segmentation in Klaviyo?

  • Yes. You can segment customers by statuses like “Awaiting Shipment,” “On Hold,” or “Cancelled,” allowing you to send targeted updates and win-back offers.

Conclusion

Most post-purchase emails miss the mark because they’re generic and late. By integrating Klaviyo with ShipStation, you turn every fulfilment update into a moment that reassures your customers and invites them back. 

Whether it’s a simple “Your order shipped” SMS or a re-engagement offer after delivery, these flows reduce churn and create loyal repeat buyers. With a clean setup, proactive flows, and the best practices outlined here, you’ll turn shipping data into a true retention driver.

Key Takeaways

  • Real-time sync: ShipStation pushes fulfilment events into Klaviyo every ~30 minutes.

  • Smarter flows: Trigger confirmations, reviews, and win-backs at the right time.

  • Segmentation power: Target customers by shipping status or delivery region.

  • Reduced support load: Automated updates cut WISMO tickets.

  • Retention impact: Personalised updates build trust and drive repeat orders.

Are your post-purchase emails failing to drive repeat revenue?

Your Klaviyo ShipStation integration might be underutilised. Let our experts audit your setup and show you how to trigger delivery-based flows that boost retention and ROI. Click here to schedule a free audit and let us map out your ideal post-purchase flow.




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