In 2026, the Salesforce-MuleSoft-Developer-I exam still has a reputation for tricky wording and broad coverage, and the Salesforce Certified MuleSoft Developer (Mule-Dev-201) syllabus is no exception. Working through 237 practice questions at CertkingdomPDF helps you spot weak areas early instead of discovering them in the testing center.
Salesforce Salesforce-MuleSoft-Developer-I Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified MuleSoft Developer |
| Exam Number: | Mule-Dev-201 |
| Certificate Validity Period: | 2 years |
| Exam Price: | $200 USD |
| Related Certifications: | Salesforce Certified MuleSoft Developer |
| Exam Format: | Multiple-select, Multiple-choice |
| Exam Duration: | 120 minutes |
| Real Exam Qty: | 65 |
| Available Languages: | English, Japanese |
| Passing Score: | 70% |
| Sample Questions: |  |
| Exam Way: | Online proctored or Onsite at Kryterion Webassessor / Pearson VUE test centers. |
| Pre Condition: | No mandatory prerequisites, but hands-on experience with Mule 4 projects and Anypoint Platform is recommended. |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/mulesoftdeveloper |
Salesforce Salesforce-MuleSoft-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Transforming Data with DataWeave | 25% | - Define and use DataWeave variables, functions, and modules - Write DataWeave scripts - Use DataWeave functions - Apply correct DataWeave syntax |
| Building and Managing APIs and Integrations | 30% | - Deploy applications - Access and modify Mule events - Use Anypoint Studio to build integrations - Handle errors - Implement connectors - Build API implementation interfaces |
| Deploying and Monitoring APIs | 15% | - Package Mule applications for deployment - Deploy applications to CloudHub - Apply policies to secure APIs - Monitor APIs |
| Designing and Consuming APIs | 20% | - Understand RESTful API design principles - Describe the lifecycle of the modern API - Identify when to use query parameters vs URI parameters - Use RAML to define API specifications |
| Security and Error Handling | 10% | - Implement error strategies - Describe default error handling in Mule applications - Create custom error handlers - Secure APIs |
Everything You Want to Know About the Salesforce Certified MuleSoft Developer (Mule-Dev-201) (Salesforce-MuleSoft-Developer-I) Exam
The Salesforce-MuleSoft-Developer-I exam, officially titled Salesforce Certified MuleSoft Developer (Mule-Dev-201), is the Salesforce exam you pass to earn the Salesforce MuleSoft certification, a credential at the Intermediate level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as Salesforce Certified MuleSoft Developer.
The Salesforce-MuleSoft-Developer-I exam includes 65 questions and gives you 120 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the CertkingdomPDF desktop or online test engine is the most reliable way to build that rhythm before exam day.
The passing score for the Salesforce-MuleSoft-Developer-I exam is 70%, and the official registration fee is $200 USD. Keep in mind that a failed attempt means paying $200 USD again in full to retake it, so book your slot only when your scores on CertkingdomPDF practice tests sit consistently above the passing line.
Salesforce lists the following prerequisites or eligibility notes for the Salesforce-MuleSoft-Developer-I exam: No mandatory prerequisites, but hands-on experience with Mule 4 projects and Anypoint Platform is recommended.. Requirements can change over time, so confirm the details on the official exam page at Salesforce's official site before you register.
Yes. CertkingdomPDF offers a free PDF demo of the Salesforce-MuleSoft-Developer-I material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.
Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding Salesforce-MuleSoft-Developer-I exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.
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The Salesforce-MuleSoft-Developer-I exam blueprint is divided into 5 domains, starting with Deploying and Monitoring APIs (15%); Security and Error Handling (10%); Designing and Consuming APIs (20%). For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.
Salesforce Certified MuleSoft Developer (Mule-Dev-201) Sample Questions:
Refer to the exhibits. What payload is logged at the end of the main flow?
- A. order4
- B. [order1, order2, order3, order4]
- C. [1, 2, 3, 4]
- D. order1order2order3order4
Correct Answer: C 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
Refer to the exhibits.
The main flow contains anHTTP Request. The HTTP Listeners and HTTP Request use default configurations.
What
values are accessible in the child flow after a web client submits a request to http://localhost:8081/order? col or = red?
- A. payloadcolor query param
- B. payloadquantity var color query param
- C. payloadquantity var
- D. payload
Correct Answer: D 🗳️
Refer to the exhibits. A web client sends a POST request to the HTTP Listener and the Validation component in the Try scope throws an error.
What response message is returned to the web client?
- A. "END"
- B. "ERROR1"
- C. Validation Error
- D. "ERROR1"
- E. "END"
- F. ''ERROR2"
- G. ''ERROR2"
- H. Validation Error
Correct Answer: G 🗳️
A Mule application's HTTP Listener is configured with the HTTP protocol. The HTTP listeners port attribute is configured with a property placeholder named http.port. The mule application sets the http.port property placeholder's value to 9090 The Mule application is deployed to CloudHub without setting any properties in the Runtime manager Properties tab and a logmessage reports the status of the HTTP listener after the Mule application deployment completes.
After the mule applications is deployed, what information is reported in the worker logs related to the port on which the Mule application's HTTP Listener listens?
- A. The HTTP Listener is listening on port 80
- B. The HTTP Listener failed to bind to the port and is not listening for connections
- C. The HTTP Listener is listening on port 8081
- D. The HTTP Listener is listening on port 9090
Correct Answer: C 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
Refer to exhibits.
What message should be added to Logger component so that logger prints "The city is Pune" (Double quote should not be part of logged message)?
- A. The city is + #[payload.City]
- B. #[The city is ${payload.City}
- C. #["The city is" ++ payload.City]
- D. The city is #[payload.City]
Correct Answer: D 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
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