Unified Omnichannel Checkout · Standard B2C Checkout / Assisted Sale¶

Customer completes a standard commerce checkout journey from basket through pricing, promotions, payment, and order confirmation. The same canonical flow supports self-service digital checkout and associate-assisted sale by keeping basket, payment, and order orchestration consistent across channels.


Domains	`customer` · `order` · `payment` · `promotion`
Actors	`customer` · `store-associate`
Process	Checkout
Capabilities	6
Steps	10
Events	13
Lifecycles	6
Min UCMI	`2.6`

⚙️ Step-by-Step Flow¶

#	Step	Actor	Lifecycle	State Change	Event
1	Create basket	customer	`basket-lifecycle`	→ open	`basket-created`
2	Add items to basket	customer	`basket-line-lifecycle`	→ added	`basket-updated`
3	Calculate base price	system	`price-list-lifecycle`	draft → calculated	`price-calculated`
4	Apply promotions	system	`promotion-lifecycle`	eligible → applied	`promotion-applied`
5	Capture checkout details	customer	`basket-lifecycle`	open → ready-for-checkout	`basket-updated`
6	Start checkout	customer	`basket-lifecycle`	ready-for-checkout → locked	`basket-checkout-started`
7	Authorize payment	system	`payment-lifecycle`	pending → authorised	`payment-authorized`
8	Create order	system	`order-lifecycle`	draft → confirmed	`order-created` · `order-confirmed` · `basket-converted`
9	Capture payment	system	`payment-lifecycle`	authorised → captured	`payment-captured`
10	Issue confirmation	system	`order-lifecycle`	confirmed → in-fulfilment	`receipt-issued` · `order-closed`

⚡ Event Sequence¶

basket-created → basket-updated → price-calculated → promotion-applied → basket-updated → basket-checkout-started → payment-authorized → order-created → order-confirmed → basket-converted → payment-captured → receipt-issued → order-closed

🔄 Lifecycles Involved¶

🧩 Capabilities Required¶

Capability
`basket-management`	Basket Management
`pricing`	Pricing
`promotions`	Promotions
`checkout`	Checkout
`payment-processing`	Payment Processing
`order-management`	Order Management

🖥️ Application Coverage¶

Applications that implement the capabilities required by this scenario.

Capability	Implementing Applications
`basket-management`	POS · eCommerce Platform · Clienteling App
`pricing`	Promotion Engine
`promotions`	Promotion Engine
`checkout`	POS · eCommerce Platform · Associate Workspace
`payment-processing`	POS · Payment Hub
`order-management`	OMS · eCommerce Platform

📊 Readiness by Profile¶

Capability readiness across assessment profiles.

Profile	Capabilities Met	Avg Score	Ready?
Acme Electronics	6/6	2.2	❌
BuildPro Trade	6/6	2.7	✅
Flash Delivery	6/6	2.8	✅
Luxe Maison	4/6	2.2	❌
Metro Fresh Group	6/6	2.8	✅
Stella Fashion Group	6/6	2.8	✅
Reference Tier 2 Non-food Retailer	6/6	3.0	✅

✅ Preconditions¶

Customer can create a basket in the chosen channel
Prices, taxes, and promotions are synchronised for the channel context
A valid payment method is available

🎯 Success Criteria¶

Basket totals are calculated consistently across online and assisted-sale channels
Promotions are applied before payment authorization
Confirmed order contains customer, commercial, and fulfilment data without manual re-entry
Payment is captured and receipt issued without channel-specific rework

⚠️ Failure Modes¶

Price or promotion recalculation changes totals after customer review
Payment authorization fails or times out
Order creation succeeds but receipt delivery fails
Assisted-sale device loses connectivity during checkout confirmation

UCMI Requirements¶

Minimum UCMI Score: 2.6

Capability	Minimum Level
`basket-management`	🟠 2
`pricing`	🟠 2
`promotions`	🟠 2
`checkout`	🟠 2
`payment-processing`	🟠 2
`order-management`	🟠 2

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