Customer.io Events & Properties

Reference for events and properties Vendo sends to Customer.io.

Last reviewed September 15, 2026

This page lists the events and properties that Vendo sends to Customer.io. The tables describe the events of the V1 Vendo Shopify app. Each event also has source (Vendo - Shopify App) and version.

Order Received

Vendo sends this event when a customer places an order.

Property	Type	Description
`order_id`	String	Order identifier
`shopify_order_id`	String	Shopify order ID
`email`	String	Customer email
`currency`	String	Order currency
`total`	Number	Order total
`subtotal`	Number	Subtotal before tax/shipping
`tax`	Number	Tax amount
`shipping`	Number	Shipping cost
`discount`	Number	Discount amount
`payment_gateway`	String	Payment method
`item_count`	Number	Number of items in `products`
`products`	Array	List of purchased items (max 20)

Products Array

Each item in the products array contains:

Property	Type
`product_id`	String
`sku`	String
`name`	String
`variant`	String
`price`	Number
`quantity`	Number
`url`	String
`image_url`	String

Order Fulfilled

Vendo sends this event when an order is shipped.

Property	Type	Description
`order_id`	String	Order identifier
`shopify_order_id`	String	Shopify order ID
`fulfillment_id`	String	Fulfillment ID
`email`	String	Customer email
`fulfillment_status`	String	Fulfillment status
`fulfillment_service`	String	Fulfillment service
`tracking_number`	String	Shipment tracking number
`tracking_url`	String	Tracking URL
`fulfillment_speed_days`	Number	Days from order to shipment

Order Delivered

Vendo sends this event when an order is delivered.

Property	Type	Description
`order_id`	String	Order identifier
`shopify_order_id`	String	Shopify order ID
`fulfillment_id`	String	Fulfillment ID
`email`	String	Customer email
`fulfillment_status`	String	Fulfillment status
`delivery_date`	Number or String	Delivery date (Unix seconds or ISO 8601)
`delivery_speed_days`	Number	Days from order to delivery

Order Refunded

Vendo sends this event when a full refund is issued.

Property	Type	Description
`order_id`	String	Order identifier
`shopify_order_id`	String	Shopify order ID
`refund_id`	String	Refund ID
`email`	String	Customer email
`currency`	String	Order currency
`refund_amount`	Number	Refund amount
`original_total`	Number	Order total before refund
`refund_type`	String	`full`
`cancel_reason`	String	Cancel reason

Order Partially Refunded

Vendo sends this event when a partial refund is issued.

Property	Type	Description
`order_id`	String	Order identifier
`shopify_order_id`	String	Shopify order ID
`refund_id`	String	Refund ID
`currency`	String	Order currency
`refund_amount`	Number	Partial refund amount
`original_total`	Number	Order total before refund
`refund_type`	String	`partial`

Cart Abandoned

Vendo sends this event when a checkout is abandoned.

Property	Type	Description
`checkout_id`	String	Checkout ID
`email`	String	Customer email
`currency`	String	Cart currency
`checkout_url`	String	Recovery URL for the abandoned cart
`total`	Number	Cart total
`subtotal`	Number	Cart subtotal
`discount`	Number	Discount amount
`item_count`	Number	Number of items in cart
`products`	Array	Items in the cart (max 20)

Checkout Started

Vendo sends this event when a customer begins the checkout process.

Property	Type	Description
`checkout_id`	String	Checkout ID
`email`	String	Customer email
`currency`	String	Cart currency
`total`	Number	Cart total
`subtotal`	Number	Cart subtotal
`discount`	Number	Discount amount
`item_count`	Number	Number of items in `products`
`products`	Array	Items in the cart (max 20)
`event_source`	String	`webhook`