Appian Certification Program ACD-301

The Appian Certified Lead Developer exam has a reputation for breadth, and many candidates underestimate how much ground it covers. Getcertkey closes those gaps with 47 practice questions that reflect the style and difficulty you can expect in 2026.

Appian ACD-301 Exam Overview:

Certification Vendor:	Appian
Exam Name:	Appian Certified Lead Developer
Exam Number:	ACD-301
Exam Duration:	90 minutes
Available Languages:	English
Passing Score:	54%
Related Certifications:	Appian Certified Associate Developer Appian Certified Senior Developer
Exam Price:	$250 USD
Certificate Validity Period:	2 years
Real Exam Qty:	45
Exam Format:	Sequence questions, Single Choice, Match the lists, Multiple Choice
Sample Questions:
Exam Way:	Online proctored exam via Meazure Learning
Pre Condition:	Must hold Appian Certified Associate Developer (ACD-101) and Appian Certified Senior Developer (ACD-201) certifications.
Official Syllabus URL:	https://community.appian.com/learn/certifications/p/lead-developer

Appian ACD-301 Exam Syllabus Topics:

Appian Certified Lead Developer Exam FAQ: What Candidates Ask Most

What is the Appian ACD-301 exam?

The ACD-301 exam is the official Appian exam behind the Appian Certification Program certification, validating the skills measured by the Appian Certified Lead Developer credential. It sits at the Expert level of the Appian certification program. It also connects to Appian Certified Associate Developer, Appian Certified Senior Developer, so the knowledge you build here carries over to those tracks as well.

How many questions are on the ACD-301 exam, and how much time do I get?

The ACD-301 exam contains 45 questions to be completed within 90 minutes. Before exam day, divide the available time by the question count to work out a comfortable per-question pace, and mark any item that eats into it so you can return later instead of getting stuck. Timed sessions in the Getcertkey test engines make that pacing automatic — run at least two full-length mock exams under the clock so time pressure never becomes the reason you drop points.

What score do I need to pass the ACD-301 exam, and what does it cost?

The passing score for the ACD-301 exam is 54%, and the official registration fee is $250 USD. Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 47 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.

Are there any prerequisites for the ACD-301 exam?

Must hold Appian Certified Associate Developer (ACD-101) and Appian Certified Senior Developer (ACD-201) certifications. Requirements can change when Appian revises its certification program, so confirm the current eligibility rules on the official exam page before you register.

Can I try the ACD-301 practice questions before I buy?

Yes. Getcertkey provides a free ACD-301 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if Appian revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.

What if I fail the ACD-301 exam, and how is my order delivered?

Every Appian Certified Lead Developer purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.

Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.

What topics are covered in the ACD-301 exam?

The Appian Certified Lead Developer exam blueprint is organized into 6 domains. The first three are:

• Data Management
• Project and Resource Management
• Extending Appian

For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.

Appian Certified Lead Developer Sample Questions:

Question 1

Review the following result of an explain statement:

Which two conclusions can you draw from this?

A. The request is good enough to support a high volume of data. but could demonstrate some limitations if the developer queries information related to the product
B. The join between the tables 0rder_detail and product needs to be fine-tuned due to Indices
C. The worst join is the one between the table order_detail and customer
D. The worst join is the one between the table order_detail and order.
E. The join between the tables order_detail, order and customer needs to be tine-tuned due to indices.

Question 2

You have 5 applications on your Appian platform in Production. Users are now beginning to use multiple applications across the platform, and the client wants to ensure a consistent user experience across all applications.
You notice that some applications use rich text, some use section layouts, and others use box layouts. The result is that each application has a different color and size for the header.
What would you recommend to ensure consistency across the platform?

A. In the common application, create one rule for each application, and update each application to reference its respective rule.
B. In each individual application, create a rule that can be used for section headers, and update each application to reference its respective rule.
C. In the common application, create a rule that can be used across the platform for section headers, and update each application to reference this new rule.
D. Create constants for text size and color, and update each section to reference these values.

Question 3

You have created a Web API in Appian with the following URL to call it: https://exampleappiancloud.com/suite/webapi/user_management/users?username=john.smith. Which is the correct syntax for referring to the username parameter?

A. httpRequest.formData.username
B. httpRequest.queryParameters.username
C. httpRequest.queryParameters.users.username
D. httpRequest.users.username

Question 4

You are the project lead for an Appian project with a supportive product owner and complex business requirements involving a customer management system. Each week, you notice the product owner becoming more irritated and not devoting as much time to the project, resulting in tickets becoming delayed due to a lack of involvement. Which two types of meetings should you schedule to address this issue?

A. An additional daily stand-up meeting to ensure you have more of the product owner's time.
B. A meeting with the sponsor to discuss the product owner's performance and request a replacement.
C. A sprint retrospective with the product owner and development team to discuss team performance.
D. A risk management meeting with your program manager to escalate the delayed tickets.

Question 5

You are reviewing the Engine Performance Logs in Production for a single application that has been live for six months. This application experiences concurrent user activity and has a fairly sustained load during business hours. The client has reported performance issues with the application during business hours.During your investigation, you notice a high Work Queue - Java Work Queue Size value in the logs. You also notice unattended process activities, including timer events and sending notification emails, are taking far longer to execute than normal.The client increased the number of CPU cores prior to the application going live.What is the next recommendation?

A. Add more application servers.
B. Optimize slow-performing user interfaces.
C. Add execution and analytics shards
D. Add more engine replicas.

Solutions: