⚡ What’s New for B2B Commerce Developers in Winter ’26?
More questions around extending B2B Commerce storefronts using LWCs, events, and page templates, including safe customization patterns vs. anti-patterns.
Increased focus on APIs, integration patterns, and headless/composable commerce where the storefront experience is decoupled from the B2B Commerce back end.
More emphasis on performance, caching, governor limits, testing, and DevOps to keep highly customized storefronts stable at scale.
B2B Commerce for Developers Accredited Professional Exam Guide
Extend & Integrate Salesforce B2B Commerce Storefronts Using Best-Practice Patterns
The B2B Commerce for Developers Accredited Professional credential validates your ability to extend, customize, and integrate B2B Commerce on Salesforce. The exam focuses on the B2B Commerce data model, extension points, LWCs, Apex, integration options, and performance-aware design for scalable storefronts.
📊 Exam at a Glance
Exam Domains & Weightage (High-Level View)
1. B2B Commerce Architecture & Data Model
~18%This domain validates a developer-level understanding of how B2B Commerce fits into the overall Salesforce platform and which objects, relationships, and services power storefront behavior.
- Core B2B Commerce objects (stores, products, catalogs, price lists, buyer groups, carts, orders).
- How B2B Commerce interacts with Accounts, Contacts, Opportunities, Quotes, and Orders.
- Security model and sharing implications for storefront vs. internal users.
- Patterns for multi-store, multi-brand, or multi-region architectures in a single org.
Tip: Expect scenario questions where the correct answer depends on understanding the native data model and avoiding duplicate objects or reinventing standard capabilities.
2. UI Customization & Extension (LWC / Experience Cloud)
~22%Here the focus is on how to safely customize the storefront UI using Salesforce technologies.
- Extending B2B Commerce pages using Lightning Web Components (LWC) and page templates.
- Working with standard components, events, and slots vs. custom components.
- Leveraging Experience Builder for layout changes vs. custom development.
- Best practices for styling, responsiveness, and reusability of storefront components.
- Guardrails for avoiding brittle customizations that conflict with future upgrades.
Tip: The exam favors extension points and configuration over modifying underlying managed packages or relying on unsupported hacks.
3. Business Logic, APIs & Integration
~24%This domain covers backend logic and integration options for B2B Commerce solutions.
- Using Apex, triggers, and asynchronous processing responsibly with B2B Commerce data.
- Working with B2B Commerce APIs (REST, GraphQL or other available endpoints) for carts and orders.
- Designing integrations to ERP, tax, payment, pricing, and inventory systems.
- Patterns for headless or composable architectures (external UIs calling B2B Commerce APIs).
- Auth, security, and limits considerations for high-volume API interactions.
Tip: Look for answers that respect transaction boundaries, governor limits, and idempotent design when integrating with external systems.
4. Cart, Checkout & Order Customization
~20%This area focuses on customizing the core buying flow while preserving stability and upgradeability.
- Extending cart behavior with custom validations, promotions, and calculations.
- Customizing checkout flows (shipping, billing, payment, PO-based flows) using extension points.
- Capturing custom fields and metadata during checkout without breaking standard flows.
- Influencing order creation and post-order processes via Apex, flows, or platform events.
- Integrating cart/checkout changes with CPQ, Order Management, or external systems where applicable.
Tip: Correct answers usually use documented extension hooks, flows, or events instead of heavy-handed overrides of core logic.
5. Performance, Testing & DevOps
~16%Finally, you’re tested on keeping your custom B2B Commerce solution performant, testable, and maintainable.
- Optimizing queries, caching strategies, and component rendering for high-traffic storefronts.
- Designing scalable solutions that respect limits and avoid chatty integrations.
- Automated testing strategies for Apex, LWCs, and integration flows.
- Using sandboxes, source control, and CI/CD pipelines for B2B Commerce deployments.
- Monitoring, logging, and troubleshooting storefront issues in production.
Percentages above are approximate and grouped at a high level based on typical exam coverage; Salesforce may refine the domain weightings over time.
📝 Sample B2B Commerce Developer Questions
💡 Practice with Scenario-Based Questions
These questions are not from the actual exam, but they mirror the reasoning required. Focus on choosing solutions that respect extension patterns, platform limits, and maintainability.
Question 1 – LWC Extension
A customer wants to show a “Frequently Bought Together” recommendation panel on the product detail page. The panel should display related SKUs from a custom object and allow users to add them to the cart with a single click.
✓ Correct Answer: B) Create a custom LWC that uses a documented extension point on the product detail template to surface recommendations and calls the standard cart APIs to add items.
Using a custom LWC plugged into an extension point preserves the standard page while adding functionality. Calling the standard cart APIs maintains compatibility with the B2B Commerce data model. Modifying managed components or replacing everything with Visualforce breaks upgrade paths.
Question 2 – Integration & Limits
During checkout, the storefront must validate the customer’s available credit with an external ERP system. The ERP exposes a synchronous REST API, but there are tight governor limits and the storefront may have bursts of traffic.
✓ Correct Answer: C) Use an Apex service that calls the ERP API via a platform event and asynchronous processing, with caching for recent responses.
A decoupled, asynchronous integration respects limits and lets you handle bursts gracefully. You can still block checkout based on cached data or queue re-checks. Direct synchronous calls in triggers or from the browser are fragile, insecure, and likely to hit limits.
Question 3 – Performance & Caching
The home page of a B2B storefront shows a carousel of featured products. Each time the page loads, Apex queries run to retrieve the same set of featured SKUs and their pricing, causing performance issues under load.
✓ Correct Answer: C) Introduce a caching mechanism (e.g., custom object or platform cache) for featured products and pricing, refreshed on a schedule or when admins update the configuration.
Caching pre-computed featured product data significantly reduces repeated queries while still allowing timely updates. This is a standard performance pattern for high-traffic storefronts. The other options either ignore the problem or remove valuable functionality.
🎯 4–6 Week Study Plan for B2B Commerce Developer AP
Review the official exam outline and B2B Commerce technical docs. Build a mental model of all key objects and how they relate to core Salesforce records. Explore a sandbox with a sample B2B store and inspect the data created for products, catalogs, carts, and orders.
Create custom LWCs that plug into product, cart, or checkout pages using supported extension points. Practice calling B2B Commerce APIs for cart operations. Experiment with Experience Builder to understand when configuration is enough vs. when you need code.
Design at least one integration scenario (e.g., payments, inventory, ERP orders) end-to-end. Implement testable Apex services with proper error handling. Optimize queries and add simple caching for a high-traffic component. Finish by running through scenario-based practice questions and timing yourself.
💡 Exam & Real-World Success Tips
Make sure you can clearly explain where and how you can extend B2B Commerce (templates, LWCs, hooks, APIs) and which approaches are not supported or upgrade-safe.
Design your code as small, testable services rather than monolithic blocks. The exam rewards solutions that can evolve with changing storefront needs and architectures.
Always think about governor limits, caching, and async patterns. When in doubt, choose designs that reduce chattiness and avoid work on hot paths like checkout.
B2B Commerce for Developers Accredited Professional – FAQ
Who is the B2B Commerce Developer AP exam for?
This exam targets Salesforce developers and technical consultants who design and build custom B2B Commerce storefront functionality, integrations, and performance-sensitive components.
Do I need the B2B Commerce Admin AP before taking the Developer AP?
It’s not strictly required, but understanding admin-level configuration (catalogs, pricing, buyer groups) will help you write better, more aligned customizations. Many candidates pair both credentials over time.
What Salesforce skills should I have before this exam?
You should be comfortable with Apex, Lightning Web Components, Salesforce data model concepts, and common integration patterns. Hands-on experience in at least one real B2B Commerce project (or a well-built sandbox prototype) is strongly recommended.
How is this exam different from a general Salesforce Developer certification?
General developer certs focus on platform-wide skills. The B2B Commerce Developer AP dives into storefront-specific extension points, B2B data and APIs, and commerce performance patterns. It assumes you already know the basics of development on Salesforce.