Updated for Summer '26
New to this track? Our Salesforce Certified MuleSoft Developer exam prep is the required first step. See our certification path to understand where this certification fits. The Salesforce Certified MuleSoft Developer II exam weights Advanced Mule Development most heavily (30%) — see the full breakdown, study tips, and practice questions below. See our full study guide for deep section coverage. Ready to book? Read our exam tips and study plan.
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Who is the MuleSoft Developer II exam for?
- Experienced MuleSoft developers: You’ve passed Developer I and want to validate your ability to build production-grade Mule applications independently.
- DevOps-focused integration engineers: You manage CI/CD pipelines for Mule apps and want to certify your Maven, MUnit, and CloudHub deployment expertise.
- Lead developers: You design advanced integration patterns and want the credential to back your architectural decisions on MuleSoft projects.
Exam Fees & Registration
Exam Fee
$200
One-time registration fee
Retake Fee
$100
If you need to retake the exam
Comparing certs? View all Salesforce exam fees in one place →
Certification Validity
Your Salesforce Certified MuleSoft Developer II certification is valid for 3 years from the date you pass the exam. You'll need to maintain your certification through continuing education or retake the exam.
How to Register
Register for the Salesforce Certified MuleSoft Developer II exam through the official Salesforce certification portal.
Register for ExamExam data verification: questions, duration, passing score, fees, and section coverage were checked against official source references on .
Official sources: Exam guide·Salesforce exam pricing·Independent prep resource; no braindumps or leaked exam questions.
Salesforce Certified MuleSoft Developer II – Complete Summer '26 Guide
The advanced MuleSoft developer exam. Expect deep questions on DataWeave modules, batch processing, API security policies, CI/CD pipelines with Maven, and production deployment strategies.
Required Prerequisite
You must complete this certification before attempting this one.
Salesforce Certified MuleSoft Developer II Exam Weightage by Section
Exam Topics
Exam Tips
- 1Advanced Mule Development is 30%—know advanced Mule concepts, patterns, and best practices.
- 2Understand API Design and Security: RESTful APIs, OAuth, and API security.
- 3Know error handling and performance: error handling strategies and performance optimization.
- 4Be ready for "how do you develop X?" questions.
Prerequisites
- •MuleSoft Developer I
- •Advanced Mule development experience
Focus Areas
- •Advanced Mule Development
- •API Design and Security
- •Error Handling and Performance
- •Deployment and Operations
Study Strategy
Develop advanced Mule applications.
Design APIs, handle errors, optimize performance.
Align with the exam outline.
Exam Format and First-Attempt Readiness
The Salesforce Certified MuleSoft Developer II exam has 60 questions in 120 min, passing score 70%. Most Salesforce exams test scenario-based decisions — focus on when to use each feature, not just terms.
- Study Advanced Mule Development and API Design and Security first — together they carry 55% of the exam.
- Do timed question sets. Build pacing and confidence.
- Review why wrong answers are wrong. It improves scenario reasoning.
- Book the exam once your mock scores are steady above 70%.
Is the MuleSoft Developer II Exam Hard?
Is the MuleSoft Developer II Exam Hard?
MuleSoft Developer II is a hard exam. It assumes you already hold Developer I knowledge and tests advanced topics like batch processing, custom policies, CI/CD pipeline design, and production deployment strategies that require real project experience.
- 60 multiple-choice questions in 120 minutes.
- ~70% passing score — the same threshold as Developer I, but the content is significantly more complex.
- Advanced DataWeave — expect pattern matching, custom modules, recursive functions, and complex nested transformations.
- Production experience matters — candidates with at least 6–12 months of hands-on Mule development in a production environment pass at significantly higher rates.
Pass Rate Guidance
Complete at least one production MuleSoft project with CI/CD before booking. Score 85%+ on practice exams since the real exam questions are more nuanced.
MuleSoft Developer II Exam Format Explained
MuleSoft Developer II Exam Format Explained
The exam is proctored online or in-person. Here is the format:
Total Questions
60 scored questions
Time Limit
120 min
Passing Score
70%
Question Type
Multiple-choice & multiple-select
How Many Questions Are Scenario-Based?
About 50–60% of questions are scenario-based. Common patterns include designing batch processing jobs for high-volume data, choosing the right API security policy combination, configuring CI/CD pipelines with Maven, and troubleshooting production deployment issues.
Best Way to Pass on Your First Attempt
- Go deep on DataWeave: Practice pattern matching, custom modules, and recursive transformations — the exam tests advanced syntax beyond basic map and filter.
- Build CI/CD pipelines: Configure Maven-based automated deployments to CloudHub and write MUnit tests with at least 80% coverage.
- Master batch processing: Know Batch Job phases, Batch Aggregator commit sizes, and how to handle failed records in high-volume data scenarios.
- Learn API security policies: Practice applying OAuth 2.0, JWT validation, rate limiting, and custom policies through API Manager.
MuleSoft Developer II: Key Concepts for the Exam
Advanced DataWeave: Functions and Modules
DataWeave II advanced features: pattern matching (match/case for type-based branching), named functions (fun myFunc(arg) = ...), lambda functions (vars), and custom modules (import from external .dwl files). Complex scenarios: transforming nested arrays, handling nulls with default and orElse, type coercion. The exam presents complex transformation requirements and tests whether the developer can write efficient, readable DataWeave code — understanding when to use map vs reduce vs mapObject is critical.
Batch Processing in Mule
Batch Job scope processes large datasets in records. Phases: On Complete (runs after all records processed), On Input (optional pre-processing), Batch Steps (process each record). Batch Aggregator accumulates records before processing — commit size defines how many records are committed together. Failed records can be routed separately. Database.Stateful equivalent: use Batch Job Record Variables to carry state. The exam tests Batch Job configuration for high-volume data processing scenarios.
API Security: Policies and OAuth
Anypoint API Manager applies security policies to deployed APIs. Common policies: Client ID Enforcement (all clients must register and send client ID), OAuth 2.0 Token Enforcement (validate Bearer tokens), IP Allowlist, Rate Limiting (throttle by client or overall). Policies are applied through API Manager and injected into the runtime automatically — no code changes needed. The exam tests which policy combination to use for a given security requirement (authentication + authorisation + throttling).
Performance: Scatter-Gather and Cache Scope
Scatter-Gather executes multiple routes in parallel and aggregates responses — ideal for fan-out calls where all responses are needed. Each route runs concurrently; Scatter-Gather waits for all routes to complete before aggregating. Cache Scope stores responses for a configurable TTL — reduces redundant external calls. Reconnection strategies handle transient connectivity failures. Async processing (VM connector, queues) decouples processing speed from response time. The exam tests when each performance pattern is appropriate.
CI/CD with Anypoint: Maven and CloudHub Deployment
Anypoint Maven Plugin enables automated deployment in CI/CD pipelines. pom.xml configuration includes CloudHub credentials, region, and worker configuration. Anypoint CLI provides command-line deployment and management. API Autodiscovery links a deployed Mule app to an API definition in API Manager — enables policy enforcement. The deployment pipeline: unit tests (MUnit) → build JAR → deploy to CloudHub → run integration tests → promote to production. The exam tests CI/CD pipeline design and Maven plugin configuration.
A DataWeave script declares its output directive (e.g. %dw 2.0 output application/json), then maps the input payload — regardless of source format (JSON, XML, CSV) — into the target structure using functions like map, filter, and pluck.
How to Pass the MuleSoft Developer II Exam
The MuleSoft Developer II exam tests advanced development skills: complex DataWeave transformations, async patterns, API security implementation, and advanced deployment strategies. Expect deep technical questions on Anypoint Platform internals.
Advanced DataWeave
Go beyond basic mappings: know how to use modules (Arrays, Strings, Math), pattern matching, recursive functions, and how to write reusable DataWeave modules. Know how to handle complex nested JSON and XML transformations.
Async & Batch Processing
Know Batch Jobs in Mule 4: Batch Job scope, Batch Step, Batch Aggregator, and On Complete phases. Understand when to use batch processing vs. scatter-gather for parallel processing of large data sets.
API Security Policies
Know how to apply policies in API Manager: Rate Limiting, JWT Validation, OAuth 2.0 (client credentials, authorization code), CORS, and IP whitelist. Understand policy ordering and how custom policies are built.
Advanced Deployment Strategies
Know the difference between CloudHub 1.0, CloudHub 2.0, and Runtime Fabric deployment models. Understand zero-downtime deployments, persistent queues, and how to configure multiple workers for HA.
Performance Tuning
Know how to tune thread pools (Grizzly, CPU intensive, CPU lite, I/O), configure watermark-based polling, and use caching (Object Store) to reduce redundant API calls in Mule applications.
Is the Salesforce Certified MuleSoft Developer II Exam Hard?
DifficultyChallenging; plan about 8-16 weeks of focused prep.
Book When ReadyScore 85%+ on three timed mocks before scheduling.
Use Practice, Not DumpsOriginal practice questions build skill without risking your credential.
Exam format: 60 questions, 120 min, 70% passing score.
Get the Full Question Bank
Most candidates book the exam after scoring 75%+ on full mocks.
If you’re planning to test this quarter, aim to complete full mocks at least 10–14 days before your exam date.
Want to ensure you pass on your first try? Contact us for more information on our full 60-question mock exams and a personalized study plan. You can also reach out to km.krishnamohan25@gmail.com.
Request Mock Exams & Study PlanSalesforce Certified MuleSoft Developer II Exam FAQs
- What is covered on the Salesforce Certified MuleSoft Developer II exam?
- This page shows the section-wise exam weightage so you know exactly which topics carry the most weight. Use the exam topics and practice questions above to align your study with the official outline.
- What is the difference between MuleSoft Developer I and II?
- Developer I focuses on building basic Mule applications and APIs. Developer II covers advanced topics like error handling, performance optimization, API design patterns, and deployment strategies.
Next Certifications After Developer
After this certification, common next steps in the developer track: