Azure API Managment - HTTP Error 503. The service is unavailable.

aditya 6 Reputation points

Hi there,

have created developer portal using Azure API management, now ready to publish and link to my domain

I have added the CNAME in host records in

However am gettting below error when I try to access it.

Service Unavailable
HTTP Error 503. The service is unavailable.


Azure API Management
Azure API Management
An Azure service that provides a hybrid, multi-cloud management platform for APIs.
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  1. Pramod Valavala 15,136 Reputation points Microsoft Employee

    APIM relies on the domain to route requests for the gateway or developer portal. For this to work, you will have to configure a custom domain in APIM and then re-publish the developer portal, in addition to the CNAME record.

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