Cencora Commerce Platform — Architecture & Migration

Proven Delivery — Healthcare Distribution to Enterprise Commerce

Architecture patterns we've battle-tested. Click each case study, then see what makes Cencora different.

Platform Approach

Three ways to replace Hybris. Click each to see details.

System Architecture — B2B First

Phase 1 target architecture. Click any box to see details. Scroll down for layer-by-layer breakdown.

Layer-by-Layer Detail

Click any layer to expand full details.

Microservices — 11 Bounded Contexts

Each service owns its data, deploys independently, and is organized around a business domain.

Order Lifecycle

How a pharmacy order flows through every service — from search to delivery.

Full Order Flow — Sequence Diagram

sequenceDiagram participant P as Pharmacy participant UI as Next.js UI participant AUTH as Identity (Okta) participant GW as API Gateway participant BFF as BFF (GraphQL) participant CAT as Catalog participant PRC as Pricing participant INV as Inventory participant ORD as Order Mgmt participant CMP as Compliance participant SAP as SAP ERP participant FUL as Fulfillment participant K as Kafka participant WMS as WMS/TMS Note over P,WMS: 0. AUTHENTICATION (B2B — First Gate) P->>UI: Navigate to abc-order.cencora.com UI->>AUTH: Redirect to Okta login P->>AUTH: Credentials + MFA AUTH-->>P: JWT (account: PH-45678, segment: independent, DEA: active, 340B: false, can_order_schedule_II: true) Note over P,AUTH: All subsequent requests carry this JWT Note over P,WMS: 1. PRODUCT DISCOVERY (identity-gated) P->>UI: Search NDC 12345-6789-01 UI->>GW: GraphQL query + JWT GW->>GW: Validate JWT GW->>BFF: Routed + JWT claims forwarded par Parallel fetch BFF->>CAT: Product details BFF->>PRC: Customer price BFF->>INV: ATP (availability) end CAT-->>BFF: NDC data + attributes PRC-->>BFF: Contract price ($42.30) INV-->>BFF: 850 units available BFF-->>UI: Combined response UI-->>P: Product page rendered Note over P,WMS: 2. CART P->>UI: Add to cart (qty: 100) UI->>GW: POST /cart/items GW->>ORD: Create cart item ORD->>K: cart.item.added K->>INV: Soft-reserve 100 units Note over P,WMS: 3. CHECKOUT — SAGA ORCHESTRATION P->>UI: Place order UI->>GW: POST /orders GW->>ORD: Initiate order saga rect rgb(238, 237, 254) Note over ORD,SAP: Saga Steps (orchestrated) ORD->>CMP: Step 1: Validate compliance CMP->>CMP: DSCSA serial verification CMP->>CMP: DEA schedule check CMP-->>ORD: Compliance PASSED ORD->>INV: Step 2: Hard-reserve stock INV-->>ORD: 100 units reserved ORD->>PRC: Step 3: Final price PRC-->>ORD: $4,230.00 confirmed ORD->>SAP: Step 4: Create sales order SAP-->>ORD: SO# 4500012345 end ORD->>K: order.confirmed K->>P: Email: Order confirmed Note over P,WMS: 4. FULFILLMENT K->>FUL: Process shipment FUL->>WMS: Pick/pack instruction WMS-->>FUL: Shipment SHP-98234 FUL->>K: fulfillment.shipped K->>P: Email: Tracking # sent Note over P,WMS: 5. DELIVERY WMS-->>FUL: Delivered FUL->>K: fulfillment.delivered K->>ORD: Mark order complete

Saga Compensation — What Happens When a Step Fails

sequenceDiagram participant ORD as Order Mgmt (Saga) participant CMP as Compliance participant INV as Inventory participant PRC as Pricing participant SAP as SAP ERP Note over ORD,SAP: Happy path until SAP fails... ORD->>CMP: Step 1: Validate compliance CMP-->>ORD: PASSED ORD->>INV: Step 2: Reserve stock INV-->>ORD: Reserved ORD->>PRC: Step 3: Final price PRC-->>ORD: Confirmed ORD->>SAP: Step 4: Create sales order SAP-->>ORD: ERROR — SAP timeout rect rgb(255, 235, 238) Note over ORD,SAP: COMPENSATION (reverse order) ORD->>PRC: Undo Step 3: Void price lock PRC-->>ORD: Done ORD->>INV: Undo Step 2: Release stock INV-->>ORD: 100 units released ORD->>CMP: Undo Step 1: Void compliance CMP-->>ORD: Audit record voided end ORD->>ORD: Order status = FAILED ORD-->>ORD: Queue for retry (Kafka DLQ) Note over ORD: Notification sent to pharmacy

Build vs Buy vs Integrate

Every component classified by the core principle. Click items for details.

CCv2 to MACH Migration

Aligned to Cencora's 3-phase eCommerce Transformation plan. BluTic scope: Phase 1 (MACH Foundation) and Phase 2 (Segment Rollout).

Detailed Roadmap — Phase 1 + Phase 2

Click any phase to expand. Durations are initial estimates — to be refined during discovery.

Migration Approaches Compared

Three strategies evaluated. Strangler Fig is our starting point — it aligns with the segment-by-segment Phase 2 rollout.

Architecture Principles & Methodology

How we'd approach Phase 1 and Phase 2 — the engineering discipline behind the architecture. Click any principle to expand.

Technical Terminology

Every architectural pattern and concept — organized as a tree. Click categories to expand, click terms for definitions.