Best practice for OAuth 2.0 client management
It is important for these reasons:
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Security isolation
Separate client IDs help contain the impact if one application gets compromised. Sharing credentials across apps increases the potential damage.
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Granular access control
Different applications often require different scopes or access levels. Unique client IDs let you configure access precisely for each app.
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Better auditing and monitoring
With individual client IDs, you can track token usage more effectively, spot irregularities, and troubleshoot problems for each app.
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Simplified revocation
You can disable or revoke a single app without disrupting others.
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Improved lifecycle management
Each app can be updated, retired, or deployed on its own, using its specific credentials.
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Compliance and policy enforcement
You can apply policies, such as token lifetime or redirect URI checks, only when each app is registered individually.