Architecture
Architecture Debate: Microsoft Graph vs. Custom Backend APIs
NX
7 min read
2026-05-07
Balancing out-of-the-box features with custom needs
Defining the Integration Strategy
Use Graph for M365 data access (Mail, Files). Use a Custom API for complex business rules, data transformation, and integrating with non-Microsoft systems like Salesforce or SAP.
Expert Insight
A 'Hybrid' approach is usually best: use Office.js for the UI, Graph for M365 data, and a Custom API for your heavy business logic and security.
Summary
The right architecture is the one that minimizes Graph API throttling while maximizing developer speed and security.
Written by
NexaAI Solutions
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