Connect Code to ShipStation and automate your tasks

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MESA's Code to ShipStation integration is the fastest way to sync data between the two — without touching a line of code. Choose which fields to send, how they're formatted, and when the sync happens. Start with a pre-built template, customize it with AI, or build something completely unique in under 10 minutes.

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Start your first automated workflow

Use pre-made workflow templates to get started quickly.

Remove Underscore Line Item Properties from Shipstation

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Why integrate Code with ShipStation

The Code to ShipStation integration helps you sync data, automate manual tasks, and keep your stack aligned — without writing code.

Connect any API your workflow needs

When a workflow needs to reach a service MESA doesn't natively support, Custom Code makes the connection. Write an HTTP request, parse the response, and pass the data to the next step — all in one workflow.

Apply pricing or discount rules unique to your store

Custom Code runs JavaScript against live order data, letting you calculate custom pricing tiers, apply business-specific discounts, or validate order details before anything processes downstream.

Encode business logic no built-in tool can match

Every operation has edge cases that standard tools can't anticipate. Custom Code lets you write the exact logic your business needs and slot it into any workflow step — validations, lookups, or calculations.

Push every Shopify order to ShipStation the moment it's placed

When an order comes in, MESA sends it to ShipStation with the right shipping method, carrier, and fulfillment rules already applied. Your team picks up a ready-to-ship order, not a configuration task.

Route orders to the right warehouse based on what's in the cart

When an order contains specific products, a wholesale flag, or a regional destination, MESA reads the details and sends it to the correct ShipStation fulfillment location. Every order reaches the right facility without manual sorting.

Update Shopify the moment ShipStation marks an order shipped

When ShipStation generates a tracking number and marks an order fulfilled, MESA writes the update back to Shopify and triggers any downstream actions — a Klaviyo notification, a customer tag, a loyalty point. Your post-purchase workflow starts the moment fulfillment does.

Build any Code and ShipStation automation

MESA helps you connect apps to automate repetitive tasks. A trigger is an event that starts a workflow, and actions are the steps that occur when it's running.

Customer Created

Starts when a customer account is created.

• Customer ID
• Create Date
• Modify Date
• Name
• Company
• Street1
• Street2
• City
• State
• Postal Code
• Country Code
• Phone
• Email
• Address Verified
• Marketplace Usernames
• Tags

Item Created

Starts when an item is created.

• Order ID
• Order Number
• Order Date
• Create Date
• Modify Date
• Payment Date
• Ship By Date
• Order Status
• Customer ID
• Customer Username
• Customer Email
• Bill To
• Ship To
• Items
• Order Total
• Amount Paid
• Tax Amount
• Shipping Amount
• Customer Notes
• Internal Notes
• Gift
• Gift Message
• Payment Method
• Requested Shipping Service
• Carrier Code
• Service Code
• Package Code
• Confirmation
• Ship Date
• Hold Until Date
• Weight
• Dimensions
• Insurance Options
• International Options
• Advanced Options
• Tag Ids
• User ID
• Externally Fulfilled
• Externally Fulfilled By
• Label Messages

Order Created

Starts when a new order is created in any status other than Awaiting Payment.

Order Shipped

Starts when a fulfilled order is shipped.

• Shipment ID
• Order ID
• Order Key
• User ID
• Order Number
• Create Date
• Ship Date
• Shipment Cost
• Insurance Cost
• Tracking Number
• Is Return Label
• Batch Number
• Carrier Code
• Service Code
• Package Code
• Confirmation
• Warehouse ID
• Voided
• Void Date
• Marketplace Notified
• Notify Error Message
• Ship To
• Weight
• Dimensions
• Insurance Options
• Advanced Options
• Shipment Items
• Label Data
• Form Data

Get List of Carrier Packages

Obtain a list of packages by carrier code.

• Carrier Code
• Code
• Name
• Domestic
• International

Get List of Customers

Obtain a list of existing customers.

Integrate Code with ShipStation today.

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