Legacy Knowledge Base
Published Sep. 10, 2025

Facing a 403 error while accessing the OOTB APIs

Written By

Madhusudan Sharma

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Issue

  • Facing a 403 error with the OOTB APIs while accessing '/headless-delivery/v1.0/sites/145009/content-structures' using Postman.

Environment

  • Liferay DXP 7.4

Resolution

  • It seems that some scope-related issues are restricting to access the OOTB APIs and resulting in authentication errors.
  • To provide scope, kindly navigate to the Control Panel > Security > OAuth 2 Administration > 'Your OAuth 2 application' > Scopes > LIFERAY.HEADLESS.DELIVERY > And give permissions accordingly.
  • Please note that it should be ensured the API endpoint you're targeting is accessible through OAuth and that the appropriate scopes are defined for the OAuth client you're using in Postman.

Additional Information

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