Exam guide · Mule-Dev-201
The Mule-Dev-201 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
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
Salesforce hasn’t announced a retirement date for Mule-Dev-201. We check Salesforce’s site every week, and this page changes the day it does.
Exam domains
Each domain’s share of the exam, as Salesforce publishes it. Spend your study time in the same proportion.
1Creating Application Networks
7%
2Designing APIs
8%
3Accessing and Modifying Mule Events
10%
4Structuring Mule Applications
10%
5Building API Implementation Interfaces
7%
6Using Connectors
10%
7Processing Records
10%
8Transforming Data
10%
9Routing Events
8%
10Handling Errors
8%
11Debugging and Troubleshooting Mule Applications
5%
12Deploying and Managing APIs and Integrations
7%
Prepare
Free tools to find your weak domains and plan your weeks, then full practice exams in OpenpassAI.
Free practice test
Original questions across the exam’s domains, each with an explanation, and your score by domain.
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Pick your exam date and weekly hours, and get a plan weighted like the domains above.
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Timed exams weighted like the real one, an AI tutor that explains every answer, and a readiness score for each domain.
FAQs
Find quick answers or contact our support team.
The Mule-Dev-201 exam has 60 questions, and you get 120 minutes.
You need 70%.
$200 (plus tax; retakes cost half, and Foundations retakes are free). Check Salesforce’s site for the price in your country.
Salesforce hasn’t announced one yet. We check Salesforce’s site every week, and this page changes the day it does.
None: Salesforce sets no prerequisites for MuleSoft Developer. Knowing the exam’s domains well is what counts.
Weight your time like the exam: Accessing and Modifying Mule Events, Structuring Mule Applications, Using Connectors, Processing Records and Transforming Data carry the most (10% each). 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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