Condition Sets
Payflow conditions are organised into six sets. Each set maps to a dedicated Shopify Function extension, and only conditions within the same set (or across overlapping sets) can be used together in a single rule.
Why sets exist
Section titled “Why sets exist”Shopify Functions have a fixed input schema — each function can only access a specific subset of checkout data. To support 50+ conditions, Payflow distributes them across multiple function extensions. The result is that some condition combinations are available and others are not.
How combinations work
Section titled “How combinations work”- Within a set: all conditions can be freely combined.
- Across sets: some conditions appear in multiple sets. As long as there is at least one set that contains all your selected conditions, the combination works.
- Set 6 (Combined) is a cross-set function that includes frequently requested multi-set conditions.
If the combination you need is not available, contact support — new combinations can be added.
Set 1 — Cart basics
Section titled “Set 1 — Cart basics”Core cart and address conditions that cover the most common use cases.
| Category | Conditions |
|---|---|
| Cart | Total amount, Total weight, Total quantity, Product, Product variant, Product tag, Collection, Product variant title |
| Shipping | Shipping country, Shipping method name, Shipping type, First name, Company |
| Customer | Customer tag |
Set 2 — Shipping & address
Section titled “Set 2 — Shipping & address”Extended address, localization, and subscription conditions.
| Category | Conditions |
|---|---|
| Cart | Subtotal amount, Contains subscription, Product variant |
| Shipping | Shipping country, Province, Shipping city, Shipping postcode, Last name, Address line 1, Address line 2, Phone |
| Customer | Customer B2B, Cart attribute B2B, B2B company name |
| Localization | Shopify Market, Checkout language |
Set 3 — Customer account
Section titled “Set 3 — Customer account”Conditions that rely on customer account data. Most require the buyer to be logged in.
| Category | Conditions |
|---|---|
| Customer | Buyer is authenticated, Buyer email, Lifetime spend, Total number of orders, Customer display name, Customer email, Customer first name, Customer last name, Customer ID, Customer metafield |
Set 4 — Discounts
Section titled “Set 4 — Discounts”Discount-based conditions.
| Category | Conditions |
|---|---|
| Discounts | Discount amount, Discount percentage |
Set 5 — Product attributes
Section titled “Set 5 — Product attributes”Detailed product-level conditions including metafields and line item data.
| Category | Conditions |
|---|---|
| Product | Variant SKU, Product vendor, Product type, Is gift card, Requires shipping, Line item price, Compare-at price, Cart attribute, Line item property, Product metafield, Variant metafield |
Set 6 — Combined
Section titled “Set 6 — Combined”A cross-set function that includes a curated selection of conditions from multiple sets, enabling combinations that would otherwise not be possible.
| Category | Conditions |
|---|---|
| Cart | Total weight, Total quantity, Product, Product tag, Subtotal amount, Contains subscription |
| Shipping | Shipping country, Province, Shipping postcode |
| Customer | Buyer is authenticated, Customer tag |
| Discounts | Discount amount, Discount percentage |
| Product | Is gift card |
| Localization | Shopify Market |
Checkout Rules
Section titled “Checkout Rules”Checkout Rules run on their own validation functions, so the sets above don’t apply to them one to one. A checkout rule is hosted on one of three functions, and all conditions in a rule must fit the same one. Payflow picks the function when you save and refuses a mix that no single function can evaluate.
| Function | Conditions |
|---|---|
| Core | Buyer email, Buyer is authenticated, Total amount, Subtotal amount, Total quantity, Shipping country, Province, Shipping city, Shipping postcode, First name, Last name, Address line 1, Address line 2, Company, Phone, Billing phone, Shipping type, Product vendor, Product tag, Collection |
| Shipping method | Everything in Core except the product conditions, plus Shipping method and Cart weight |
| Customer account | Total number of orders, Lifetime spend, Customer account email, Customer tag, plus Buyer email, Buyer is authenticated, Total amount, Subtotal amount, Total quantity, Shipping country, Product tag, Collection |
In practice: customer-account conditions combine with product tag, collection, amounts and the shipping country, but not with address details, shipping method, cart weight or vendor. Customer-account conditions only match logged-in buyers; a guest never matches them, even when the email typed at checkout belongs to an existing account.
Quick reference
Section titled “Quick reference”| Set | Internal ID | Primary focus |
|---|---|---|
| Set 1 | default | Cart basics — totals, products, tags, country |
| Set 2 | shipping | Address details, localization, B2B |
| Set 3 | customer | Customer account data |
| Set 4 | discount | Discount amount and percentage |
| Set 5 | product | Product attributes, metafields, line items |
| Set 6 | combined | Cross-set combinations |