Leadership in the IT field starts with proof of skill, and the Appian Certified Lead Developer exam is that proof. In 2026, TestPassed prepares ACD300 candidates with 37 practice questions edited by experts who know the real test firsthand.
Appian ACD300 Exam Overview:
| Certification Vendor: | Appian |
|---|---|
| Exam Name: | Appian Certified Lead Developer (ACD-300) Exam |
| Exam Number: | ACD-300 |
| Related Certifications: | Appian Certified Senior Developer Appian Certified Associate Developer |
| Available Languages: | English |
| Exam Duration: | 120 minutes |
| Exam Price: | Free |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Recommended Training: | Appian Academy Learning Paths |
| Exam Registration: | Appian Academy Certification Portal |
| Sample Questions: |  |
| Exam Way: | Online proctored exam via Appian Academy |
| Pre Condition: | Recommended prior completion of Appian Certified Associate Developer certification and practical Appian development experience |
| Official Syllabus URL: | https://academy.appian.com/ |
Appian ACD300 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Appian Platform Architecture | - Core platform components and architecture principles - Appian design best practices and scalability concepts |
| Topic 2: Application Design and Data Modeling | - Records and record types design - Data types, data stores, and data modeling approach |
| Topic 3: Integration and Services | - Connected systems and integrations - Web APIs and integration patterns |
| Topic 4: Interface Design | - Expression rules and reusable components - SAIL interface design and UI components |
| Topic 5: Security and Administration | - Environment management and deployment practices - User roles, groups, and security model |
| Topic 6: Process Modeling | - Error handling and process optimization - Process model design and best practices |
| Topic 7: Performance and Optimization | - Application performance tuning - Efficient expression and query design |
Appian ACD300 Exam FAQ: Worry-Free Answers
Appian Certified Lead Developer is an official Appian certification exam, listed under the code ACD300. Passing it earns you the Appian Certified Lead Developer certification, positioned at the Professional level. It also connects to Appian Certified Associate Developer, Appian Certified Senior Developer. For anyone aiming at a leadership track in IT, this credential is one of the clearest markers of verified skill.
Recommended prior completion of Appian Certified Associate Developer certification and practical Appian development experience
Vendor requirements are revised periodically, so confirm the current conditions before registering via the official exam page.
Sign-up for Appian Certified Lead Developer goes through the official channels below.
One planning note: the exam is delivered Online proctored exam via Appian Academy.
Appian recommends the following training for Appian Certified Lead Developer candidates.
Reinforce whichever training you pick with the 37 practice questions in the TestPassed ACD300 package, edited by experts who follow real test changes firsthand.
Three versions share the same verified content: the PDF prints unlimited copies for paper study, the SOFT engine imitates the real test scene on Windows PCs, and the APP version runs on all electronic products, which is why the majority of examinees choose it. A free demo lets you try before deciding, and after purchase updates are free for 365 days, extendable afterward at a 50% discount.
Worry-free shopping means a 100% money-back guarantee with stated conditions. Take the Appian Certified Lead Developer exam within 60 days of purchase; if you fail, you may claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. Alternatively, exchange for two other exam products of equal value, free, keeping the update service on your original purchase.
Delivery is immediate: files unlock for download at payment and are emailed to you within one minute. If nothing arrives within 2 hours, check spam and contact our 7/24 customer attendants, who reply within two hours. Installation is unlimited, and credit card payment keeps your money safe.
Appian Certified Lead Developer is structured into 7 official domains. The leading ones are Integration and Services, Interface Design, and Security and Administration. The full topic breakdown appears above; accurate preparation starts with an accurate map.
Appian Certified Lead Developer Sample Questions:
You are running an inspection as a part of the first deployment process from TEST to PROD. You receive a notice that one of your objects will not deploy because it is dependent on an object from an application owned by a separate team.
What should be your next step?
- A. Check the dependencies of the necessary object Deploy w PROO if there are few dependencies and it is low risk
- B. Halt the production deployment and contact the other team tor guidance on promoting the object to PROD
- C. Create your own object with the same code base, replace (he dependent object in the application. and deploy to PROO.
- D. Push a functionally viable package to PROD without the dependencies, and plan the rest o! the deployment accordingly with the other team's constraints
Correct Answer: B 🗳️
Explanation: Only visible for TestPassed members. You can sign-up / login (it's free).
You are required to configure a connection so that Jira can inform Appian when specific tickets change (using webhook).
Which three required steps will allow you to connect both systems?
- A. Create a Web API object and set up the correct security.
- B. Give the service account system administrator privileges
- C. Create a new API Key and associate a service account
- D. Configure the connection In Jira specifying the URE and credentials
- E. Create an integration object from Applan to Jira to periodically check the ticket status
Correct Answer: A,C,D 🗳️
Explanation: Only visible for TestPassed members. You can sign-up / login (it's free).
As part of your implementation workflow, users need to retrieve data stored in a third-party Oracle database on an interface. You need to design a way to query this information.
How should you set up this connection and query the data?
- A. Configure a limed utility process that queries data from the thirdparty database daily, and stores It in the Applan business database, Then use alqueryEntity eating the Applan data source to retrieve the data.
- B. Configure an expression-backed record type, calling an API to retrieve the data from the third-party database. Then, use allqueryRecordType to retrieve the data.
- C. in the Administration Console configure the third-party database as a ''New Data Source,'' Then, use alqueryEntity to retrieve the data.
- D. Configure a Query DataBase node within the process model Then, type in the connection information, as well as a SQL query to execute and return the data in process variables.
Correct Answer: C 🗳️
Explanation: Only visible for TestPassed members. You can sign-up / login (it's free).
You are planning a strategy around data volume testing for an Appian application that queries and writes to MySQL database.
You have administrator access to the Appian application and to the database.
What are two key considerations when designing a data volume testing strategy?
- A. large datasets must be loaded via Applan processes
- B. The amount of data that needs to be populated should be determined by the project sponsor and the stakeholders based on their estimation
- C. Data model changes must wait until towards the end of the protect.
- D. Testing with the correct amount of data should be in the definition of done as part of each sprint.
- E. Data from previous tests needs to remain in the testing environment prior to loading prepopulated data
Correct Answer: C,D 🗳️
Explanation: Only visible for TestPassed members. You can sign-up / login (it's free).
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