Mule-Dev-301
1Exposing Production-Ready Anypoint-Managed APIs
13%
2Maintainable, Modular Applications and Maven Builds
25%
3Monitorable Applications
15%
4Performant and Reliable Applications
27%
5Securing Data at Rest and in Transit
20%
Exam guide · Mule-Dev-301
Salesforce MuleSoft Developer II exam guide
The Mule-Dev-301 exam has 60 questions and takes 120 minutes. You need 70% to pass. It costs $200 (plus tax; retakes cost half, and Foundations retakes are free). Salesforce hasn’t announced a retirement date.
Last updated
The exam at a glance
Salesforce MuleSoft Developer II (Mule-Dev-301)
- Questions
- 60
- Time
- 120 min
- Prerequisites
- MuleSoft Developer
- Level
- Advanced
- Role
- Senior MuleSoft Developer
- Exam code
- Mule-Dev-301
From Salesforce’s own pages, checked every week (last on November 8, 2026). The cost was checked on November 8, 2026. How we check our facts
Versions and dates
What’s changing, and when
Salesforce hasn’t announced a retirement date for Mule-Dev-301. We check Salesforce’s site every week, and this page changes the day it does.
Exam domains
What the exam covers
Each domain’s share of the exam, as Salesforce publishes it. Spend your study time in the same proportion.
Prepare
Start on Salesforce MuleSoft Developer II today
Free tools to find your weak domains and plan your weeks, then full practice exams in OpenpassAI.
Free practice test
10 Mule-Dev-301 questions
Original questions across the exam’s domains, each with an explanation, and your score by domain.
Take the testFree study plan
A week-by-week plan
Pick your exam date and weekly hours, and get a plan weighted like the domains above.
Make my planSalesforce certifications
Where MuleSoft Developer II fits
Every Salesforce certification on one map, with each exam’s facts checked weekly.
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Take it further in OpenpassAI
Full Salesforce MuleSoft Developer II practice exams
Timed exams weighted like the real one, an AI tutor that explains every answer, and a readiness score for each domain.
FAQs
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Find quick answers or contact our support team.
How many questions are on the Salesforce MuleSoft Developer II exam?
The Mule-Dev-301 exam has 60 questions, and you get 120 minutes.
What is the passing score for Salesforce MuleSoft Developer II?
You need 70%.
How much does the Salesforce MuleSoft Developer II exam cost?
$200 (plus tax; retakes cost half, and Foundations retakes are free). Check Salesforce’s site for the price in your country.
When does Mule-Dev-301 retire?
Salesforce hasn’t announced one yet. We check Salesforce’s site every week, and this page changes the day it does.
What experience do I need for Salesforce MuleSoft Developer II?
Salesforce lists: MuleSoft Developer.
How should I study for Salesforce MuleSoft Developer II?
Weight your time like the exam: Performant and Reliable Applications carries the most (27%). Take the free practice test to find your weakest domains, make a study plan around them, and before you book, sit full-length timed practice exams until you pass them comfortably.
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