Note: This interview was collected from an online source.
Hexaware
Appian Developer
SeniorTechnical
Difficulty Level
Medium
A
Admin
72 viewsPosted Nov 28, 2025
Questions Asked
- Explain Task Lock functionality in Appian. Where and why is it used?
- What are the different ways to create a CDT (Custom Data Type)?
- Write an expression to remove vowels from a string (using stripwith).
- Given an input n, return a list {n, n-1, ..., 1}.
- Example: n = 5 → {5, 4, 3, 2, 1}
- Explain API Keys and Service Accounts. When would you use each?
- What are the different authentication methods supported by Appian Web APIs?
- If an error occurs in a queryEntity rule, what could be the possible reasons?
- Explain your project and the major challenges you faced.
- How do you optimize a database view used in Appian?
- Explain CDT vs Record Type in detail, including performance, use cases, and limitations.
- What are the general Appian best practices you follow?
- What are the process model best practices?
- Explain queryRecordType() vs queryRecordByIdentifier()—differences and use cases.
- What are the key features from the latest Appian release?
- Explain the difference between End Node and End Node with Terminate Process:
- End Node: Ends only the current execution path; other parallel paths continue.
- End Node + Terminate Process: Immediately stops the entire process instance, including all active tasks and subprocesses.
- When would you use each?
- What are the different ways to start a process model in Appian?
- How many Appian objects can be configured in a Site (Pages)? What are the limits and best practices?
- How can an external system access an Appian interface?
- How would you validate the file extension in Appian so that the validation applies across all objects or the entire application? (Hexaware – critical interview question)