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Excerpt
## Disadvantages of Using MSAL - Not suitable for complex microservices environments with decentralised identity requirements. - Developers must have a clear understanding of authentication sources and identity flows. - Focuses primarily on authentication and token issuance rather than fine-grained authorisation logic. - It does not manage role-based or feature-level access control within the application itself. … ## Best Practices for Using MSAL Effectively It is important to plan authentication as part of your application’s core architecture. You must start by clearly defining your authentication and access requirements. So, you can select the most appropriate MSAL flow and sign-in method. Working closely with IT or identity teams helps ensure claims and scopes. It also ensures that token configurations are managed correctly, especially when custom behaviour is needed beyond MSAL’s default capabilities.
Related Pain Points
Blurred distinction between OAuth authentication and authorization
6OAuth 2.0 is fundamentally for authorization (permissions), not authentication (identity), but developers frequently misuse it for authentication. This conceptual confusion leads to security vulnerabilities and architectural mistakes that compound during production rollouts.
MSAL lacks fine-grained access control and authorization
5MSAL focuses primarily on authentication and token issuance but does not fully address access control issues or implement role-based and feature-level access control within applications. Developers must build custom authorization logic.
MSAL unsuitable for decentralized microservices architectures
5MSAL is not well-suited for complex microservices environments with decentralized identity requirements. Its centralized authentication approach doesn't map well to distributed systems where each service manages its own identity.
Conditional Access and claims challenge handling requires manual implementation
5Developers must manually implement retry policies and claims challenge handling for Conditional Access scenarios in MSAL. Silent token acquisition can fail with claims challenges that require interactive re-acquisition, and HTTP errors (429, 500-600) need custom retry logic.