Complete trigger reference

Every trigger this app adds to Shopify Flow, what makes it fire, the permission it needs, and where you switch it on. There are 98 triggers in total.

Looking for the one that fits your use case? Start with Choosing the right trigger.

New to Shopify Flow? Build Your first workflow, step by step first. Want something that works right away? Workflow templates are ready-made workflows you can import.

You usually do not have to switch anything on

Activating a Shopify Flow workflow enables the trigger it uses. Flow tells us the moment a workflow goes live, and we switch that trigger on and start its baseline sync automatically. So the normal path is: build the workflow, turn it on, done.

The Permission column is the part that is not automatic. Where it lists two, both are needed: Shopify Flow refuses an event that refers to a product, customer or order the app is not allowed to read, so the event is rejected and shows as failed in Event History. A trigger whose permission has not been granted stays switched on but cannot fire, and is flagged on the Triggers page until you grant it. That applies however the trigger was enabled, including from Flow. See Permissions and data access.

The Turn it on column is where to do it by hand if you would rather - see The Triggers page (formerly Settings). The same applies to the storefront triggers, so turning on a workflow that uses one starts collecting shopper events once its permission is granted. Read Storefront triggers before you build on one.

Shopify Flow's Select trigger panel listing the triggers of Workflow Trigger Extensions — Where you find them: Shopify Flow, Select a trigger, Workflow Trigger Extensions. The list below is the same set, with what each one needs and sends.

Products (11)

Step by step, with the fields each trigger sends: Product triggers, step by step.

Field-level product changes. Native Flow tells you a product was updated; these tell you what changed, so a workflow can react to a title edit without also running on every price change.

Trigger	Fires from	Permission	Turn it on
Product Update	Shopify webhook	`read_products`	Triggers page
Product Tags Added	Webhook + change detection	`read_products`	Triggers page
Product Tags Removed	Webhook + change detection	`read_products`	Triggers page
Product Status Changed	Webhook + change detection	`read_products`	Triggers page
Product Title Changed	Webhook + change detection	`read_products`	Triggers page
Product Handle Changed	Webhook + change detection	`read_products`	Triggers page
Product Description Changed	Webhook + change detection	`read_products`	Triggers page
Product Vendor Changed	Webhook + change detection	`read_products`	Triggers page
Product Type Changed	Webhook + change detection	`read_products`	Triggers page
Product Published to Channel	Webhook + change detection	`read_publications` + `read_products`	Triggers page
Product Unpublished from Channel	Webhook + change detection	`read_publications` + `read_products`	Triggers page

Product variants (4)

Step by step, with the fields each trigger sends: Product variant triggers, step by step.

Variant-level pricing and identifier changes, each detected independently.

Trigger	Fires from	Permission	Turn it on
Product Variant Price Changed	Webhook + change detection	`read_products`	Triggers page
Product Variant SKU Changed	Webhook + change detection	`read_products`	Triggers page
Product Variant Barcode Changed	Webhook + change detection	`read_products`	Triggers page
Product Variant Unit Price Changed	Webhook + change detection	`read_products`	Triggers page

Collections (4)

Step by step, with the fields each trigger sends: Collection triggers, step by step.

Collection updates, plus the individual fields most often used for SEO and merchandising automation.

Trigger	Fires from	Permission	Turn it on
Collection Update	Shopify webhook	`read_products`	Triggers page
Collection Handle Changed	Webhook + change detection	`read_products`	Triggers page
Collection Title Changed	Webhook + change detection	`read_products`	Triggers page
Collection Description Changed	Webhook + change detection	`read_products`	Triggers page

Metafields (5)

Step by step, with the fields each trigger sends: Metafield triggers, step by step.

Custom-data changes. The generic Metafield Update trigger covers 10 owner types and is configured per definition on the Metafield Triggers page. The typed triggers additionally deliver the order, product, variant, or customer as a native Flow reference.

Trigger	Fires from	Permission	Turn it on
Metafield Update	Webhook + change detection	`read_products`	Metafield Triggers page
Order Metafield Update	Webhook + change detection	`read_orders`	Metafield Triggers page
Product Metafield Update	Webhook + change detection	`read_products`	Metafield Triggers page
Product Variant Metafield Update	Webhook + change detection	`read_products`	Metafield Triggers page
Customer Metafield Update	Webhook + change detection	`read_customers`	Metafield Triggers page

Metaobjects (1)

Step by step, with the fields each trigger sends: Metaobject trigger, step by step.

Changes to metaobject entries, configured per definition on the Metaobject Triggers page.

Trigger	Fires from	Permission	Turn it on
Metaobject entry updated	Shopify webhook	`read_metaobjects`	Metaobject Triggers page

Customers (11)

Step by step, with the fields each trigger sends: Customer triggers, step by step.

Customer record changes, including tags, note, state, marketing consent, and the opt-in personal-data fields.

Trigger	Fires from	Permission	Turn it on
Customer Update	Shopify webhook	`read_customers`	Triggers page
Customer Tags Added	Webhook + change detection	`read_customers`	Triggers page
Customer Tags Removed	Webhook + change detection	`read_customers`	Triggers page
Customer Note Changed	Webhook + change detection	`read_customers`	Triggers page
Customer State Changed	Webhook + change detection	`read_customers`	Triggers page
Customer Name Changed	Webhook + change detection (protected data)	`read_customers`	Triggers page (protected data, opt-in)
Customer Email Changed	Webhook + change detection (protected data)	`read_customers`	Triggers page (protected data, opt-in)
Customer Phone Changed	Webhook + change detection (protected data)	`read_customers`	Triggers page (protected data, opt-in)
Customer Address Changed	Webhook + change detection (protected data)	`read_customers`	Triggers page (protected data, opt-in)
Customer Email Marketing Consent Changed	Shopify webhook	`read_customers`	Triggers page
Customer SMS Marketing Consent Changed	Shopify webhook	`read_customers`	Triggers page

Orders (10)

Step by step, with the fields each trigger sends: Order triggers, step by step.

Order changes at a granularity native Flow does not offer: individual line items, fulfillment transitions, financial status, notes, attributes, and tags.

Trigger	Fires from	Permission	Turn it on
Order Update	Shopify webhook	`read_orders`	Triggers page
Order Tags Added	Webhook + change detection	`read_orders`	Triggers page
Order Tags Removed	Webhook + change detection	`read_orders`	Triggers page
Order Note Changed	Webhook + change detection	`read_orders`	Triggers page
Order Attributes Changed	Webhook + change detection	`read_orders`	Triggers page
Order Line Items Changed	Webhook + change detection	`read_orders`	Triggers page
Order Fulfillment Changed	Webhook + change detection	`read_orders`	Triggers page
Order Display Status Changed	Polling	`read_orders`	Triggers page
Order Financial Status Changed	Webhook + change detection	`read_orders`	Triggers page
Order Shipping Address Changed	Webhook + change detection (protected data)	`read_orders` + `read_customers`	Triggers page (protected data, opt-in)

Draft orders (10)

Step by step, with the fields each trigger sends: Draft order triggers, step by step.

Full draft order lifecycle coverage for B2B negotiation, wholesale invoicing, and custom order workflows.

Trigger	Fires from	Permission	Turn it on
Draft Order Update	Shopify webhook	`read_draft_orders`	Triggers page
Draft Order Tags Added	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Tags Removed	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Note Changed	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Attributes Changed	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Line Items Changed	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Status Changed	Webhook + change detection	`read_draft_orders`	Triggers page
Draft Order Email Changed	Webhook + change detection (protected data)	`read_draft_orders`	Triggers page (protected data, opt-in)
Draft Order Shipping Address Changed	Webhook + change detection (protected data)	`read_draft_orders`	Triggers page (protected data, opt-in)
Draft Order Billing Address Changed	Webhook + change detection (protected data)	`read_draft_orders`	Triggers page (protected data, opt-in)

Companies (B2B) (5)

Step by step, with the fields each trigger sends: B2B company triggers, step by step.

B2B company and company-location changes, including tax-exemption edits that Shopify does not emit a webhook for.

Trigger	Fires from	Permission	Turn it on
Company Update	Shopify webhook	`customer_read_companies`	Triggers page
Company Location Update	Shopify webhook	`customer_read_companies`	Triggers page
Company Location Tax Exemptions Changed	Polling	`customer_read_companies`	Triggers page
Company Contact Updated	Shopify webhook	`customer_read_companies` + `read_customers`	Triggers page
Customer Removed from Company	Shopify webhook	`customer_read_companies` + `read_customers`	Triggers page

Discounts (6)

Step by step, with the fields each trigger sends: Discount triggers, step by step.

The complete discount lifecycle, including expiry, which Shopify does not report at all.

Trigger	Fires from	Permission	Turn it on
Discount Created	Shopify webhook	`read_discounts`	Triggers page
Discount Updated	Shopify webhook	`read_discounts`	Triggers page
Discount Deleted	Shopify webhook	`read_discounts`	Triggers page
Discount Expired	Polling	`read_discounts`	Triggers page
Discount Code Added	Shopify webhook	`read_discounts`	Triggers page
Discount Code Removed	Shopify webhook	`read_discounts`	Triggers page

Inventory (4)

Step by step, with the fields each trigger sends: Inventory triggers, step by step.

Per-location stock triggers. Shopify's native inventory triggers are variant-aggregate with no location; these carry the location plus the old, new, and delta quantities.

Trigger	Fires from	Permission	Turn it on
Inventory Level Changed at Location	Webhook + change detection	`read_inventory` + `read_products`	Triggers page
Out of Stock at Location	Webhook + change detection	`read_inventory` + `read_products`	Triggers page
Back in Stock at Location	Webhook + change detection	`read_inventory` + `read_products`	Triggers page
Product Variant Cost Changed	Webhook + change detection	`read_inventory` + `read_products`	Triggers page

Locations (5)

Step by step, with the fields each trigger sends: Location triggers, step by step.

Location lifecycle events across warehouses, retail stores, and pickup points.

Trigger	Fires from	Permission	Turn it on
Location Created	Shopify webhook	`read_locations`	Triggers page
Location Updated	Shopify webhook	`read_locations`	Triggers page
Location Deleted	Shopify webhook	`read_locations`	Triggers page
Location Activated	Shopify webhook	`read_locations`	Triggers page
Location Deactivated	Shopify webhook	`read_locations`	Triggers page

Markets (4)

Step by step, with the fields each trigger sends: Market triggers, step by step.

Market lifecycle events for international and B2B selling.

Trigger	Fires from	Permission	Turn it on
Market Created	Shopify webhook	`read_markets`	Triggers page
Market Updated	Shopify webhook	`read_markets`	Triggers page
Market Deleted	Shopify webhook	`read_markets`	Triggers page
Market Status Changed	Webhook + change detection	`read_markets`	Triggers page

Content (blogs & pages) (3)

Step by step, with the fields each trigger sends: Blog and page triggers, step by step.

Online store content changes. Shopify publishes no webhooks for content, so these are detected by polling.

Trigger	Fires from	Permission	Turn it on
Blog Update	Polling	`read_content`	Triggers page
Blog Post Update	Polling	`read_content`	Triggers page
Page Update	Polling	`read_content`	Triggers page

Storefront (12)

Step by step, with the fields each trigger sends: Storefront triggers, step by step.

What shoppers do on your online store, collected by the app's web pixel. All of them need Storefront Behaviour Access (read_customer_events), the ones that send a product also need Product, Variant & Collection Data Access (read_products), they start switched off, respect the shopper's analytics consent, and are best effort rather than guaranteed. Read Storefront triggers before enabling one - they can be far higher volume than anything above.

Trigger	Fires from	Permission	Turn it on
Storefront Product Viewed	Storefront pixel	`read_customer_events` + `read_products`	Triggers page
Storefront Collection Viewed	Storefront pixel	`read_customer_events`	Triggers page
Storefront Cart Viewed	Storefront pixel	`read_customer_events`	Triggers page
Storefront Product Added to Cart	Storefront pixel	`read_customer_events` + `read_products`	Triggers page
Storefront Product Removed from Cart	Storefront pixel	`read_customer_events` + `read_products`	Triggers page
Storefront Checkout Started	Storefront pixel	`read_customer_events`	Triggers page
Storefront Search	Storefront pixel	`read_customer_events` + `read_products`	Triggers page
Storefront Search Returned No Results	Storefront pixel	`read_customer_events`	Triggers page
Out-of-Stock Variant Viewed	Storefront pixel + inventory check	`read_customer_events` + `read_inventory` + `read_products`	Triggers page (also enables Storefront Product Viewed)
Signed-In Customer Visited	Storefront pixel	`read_customer_events` + `read_customers`	Triggers page (visit window in its settings)
B2B Buyer Visited	Storefront pixel	`read_customer_events` + `customer_read_companies`	Triggers page (visit window in its settings)
Custom Storefront Trigger	Storefront pixel	`read_customer_events`	Custom triggers, one per event name you publish

Checkout (3)

Step by step, with the fields each trigger sends: Checkout triggers, step by step.

Two of these are collected by the pixel during checkout. The third is a webhook trigger that fires when an order arrives from a customer with no previous orders.

Trigger	Fires from	Permission	Turn it on
Checkout Error Shown	Storefront pixel	`read_customer_events`	Triggers page
Checkout Discount Code Rejected	Storefront pixel	`read_customer_events`	Triggers page
First-Time Customer Order	Shopify webhook	`read_orders` + `read_customers`	Triggers page

Not in this list: custom triggers

When none of the 98 fits, you can write your own: pick a Shopify event, capture a real payload, and write a short transform that decides when to fire and what to send. See Custom triggers. On the storefront, publish your own event from your theme and it arrives as Custom Storefront Trigger - see Custom Storefront Triggers.

Summary

How it fires	Triggers
Webhook + change detection	44
Shopify webhook	26
Webhook + change detection (protected data)	8
Polling	6
Storefront pixel	14
Total	98