PL-900 Demonstrate the capabilities of Power Apps Practice Question
A company wants to allow external partners to submit support tickets via a web interface. The data should be stored in Dataverse. Which type of app should they build?
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
✓
Power Apps portal
Power Apps portals (now Power Pages) are specifically designed to create external-facing websites that allow external users, such as partners, to interact with Dataverse data through a web interface. Canvas apps and model-driven apps are intended for internal users, while Power Virtual Agents is for chatbots.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Canvas app
Why it's wrong here
Canvas apps are shared internally through Microsoft Entra ID authentication; external partners without accounts cannot sign in, so anonymous web submission fails. It tempts as the flexible low-code option, and would be right for an internal ticket app used by employees.
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Power Virtual Agents bot
Why it's wrong here
Power Virtual Agents bots handle conversational question-and-answer flows, not structured form submission into Dataverse tables. It tempts because bots can capture requests conversationally, and would be correct for an FAQ or triage assistant rather than a web ticket form.
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Model-driven app
Why it's wrong here
Model-driven apps require authenticated Microsoft Entra ID users, so external partners cannot access them anonymously via a web interface. It tempts because model-driven apps sit naturally on Dataverse, and would be correct for internal users needing generated forms over complex Dataverse relationships.
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Power Apps portal
Why this is correct
Power Apps portals provide an external-facing web interface with anonymous or authenticated access, letting partners submit support tickets without a Microsoft Entra ID licence. Submissions write directly to Dataverse tables, satisfying the external-access and Dataverse storage constraints that model-driven or canvas apps, which require internal licensing, cannot meet.
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