Managing User Profiles in Microsoft 365: PnPjs vs Microsoft Graph API

Introduction

In modern SharePoint and Microsoft 365 development, one question comes up again and again: Should you use PnPjs or Microsoft Graph API?

Both are powerful tools, but choosing the wrong one can either overcomplicate your solution or limit its scalability later. The key is understanding where each one fits best.

Understanding the Tools

PnPjs (@pnp/sp)

PnPjs is a JavaScript library built specifically for SharePoint. It simplifies working with SharePoint REST APIs and is especially popular in SPFx development.

import { spfi } from "@pnp/sp";
import "@pnp/sp/profiles";

const profile = await sp.profiles.myProperties();

It abstracts complex REST calls into simple, readable code.

Microsoft Graph API

Microsoft Graph API is a unified endpoint that connects multiple Microsoft 365 services such as SharePoint, Teams, Outlook, and Azure AD.

const user = await graphClient.api('/me').get();

It acts as a single gateway to access data across the entire Microsoft ecosystem.

When to Use PnPjs

Use PnPjs when your solution is focused entirely on SharePoint.

✅ Best scenarios:

Building SPFx web parts or extensions
Working with SharePoint lists and document libraries
Accessing SharePoint user profiles and properties
Rapid development with minimal setup

💡 Example use case:

Creating a SharePoint web part that displays details of the logged-in user.

Why PnPjs?

Clean and simple syntax
Seamless integration with SPFx
No complex authentication setup
Direct access to SharePoint-specific features

When to Use Microsoft Graph API

Use Microsoft Graph API when your solution spans across Microsoft 365 services.

✅ Best scenarios

Building enterprise-level applications
Integrating services like Teams, Outlook, and OneDrive
Creating standalone (non-SPFx) applications
Accessing organization-wide user data via Azure AD

💡 Example use case:

Building a dashboard that displays:

User emails (Outlook)
Teams' presence
OneDrive files

Why Graph API?

One unified API for multiple services
Highly scalable and future-ready
Centralized identity and data access

🚫 When NOT to Use Each

Avoid PnPjs if:

You need data outside SharePoint
You’re building cross-service Microsoft 365 solutions

Avoid Microsoft Graph API if:

Your solution is purely SharePoint-based
You want fast development without complex setup

Final Decision Rule

Think of it this way:

Only SharePoint? → Use PnPjs
Multiple Microsoft 365 services? → Use Graph API
Enterprise-scale, future-proof solution? → Prefer Graph API

Conclusion

There is no one-size-fits-all answer.
PnPjs is ideal for fast, efficient SharePoint development, while Microsoft Graph API is better suited for broader, scalable Microsoft 365 applications.

The right choice depends on your project scope—not just convenience.