PL-900 Practice Question: Demonstrate the capabilities of Power Automate
A user wants to automate sending a welcome email to new users added to Microsoft Entra ID. Which Power Automate trigger should they use?
⚠ Common exam trap
The trap is picking a trigger that sounds related (e.g., 'When a new email arrives') instead of the one tied to the actual event source — always match the trigger's service to the event you want to detect.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
When a user is added to Microsoft Entra ID
Power Automate includes a native Microsoft Entra ID (Azure AD) connector with the trigger 'When a user is added to Microsoft Entra ID' (also surfaced as 'When a user is created' in some versions). This trigger fires when a new user object is created in the tenant, making it the correct choice for automating a welcome email to new users. The other triggers are tied to different services (email, Dataverse, SharePoint) and would not fire on user creation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
When a new email arrives
Why it's wrong here
'When a new email arrives' fires on inbound mail in a mailbox, so it never detects directory user creation. It is tempting because welcome emails are email-centric, and this trigger would be correct if the requirement were to react to a message arriving in Outlook.
- ✗
When a row is added, modified or deleted in Dataverse
Why it's wrong here
A Dataverse row trigger fires on table records, not on Microsoft Entra ID directory objects, so new users never raise it. It is tempting because Dataverse is the Power Platform data store, and this trigger would be correct if new users were first written to a Dataverse table.
- ✓
When a user is added to Microsoft Entra ID
Why this is correct
The Microsoft Entra ID connector's trigger fires when a user account is created in the directory, which is exactly the event the welcome email must respond to. It satisfies the requirement to automate email on new user creation.
- ✗
When a file is created in SharePoint
Why it's wrong here
A SharePoint file-created trigger fires on documents in a library, not on directory objects, so user creation never raises it. It is tempting because SharePoint lists often hold onboarding data, and this trigger would be correct if new users were provisioned by adding a list item.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This PL-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-900 exam.