SSL Cert Error in Azure Application Gateway

Question

We followed the guide to setup an SSL application gateway - https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-ssl-portal.

When I create the rule for https traffic, I get an error:

Failed to save configuration changes to application gateway 'xxxgateway'. Error: Data must be specified for Certificate /subscriptions/Subscription_ID/resourceGroups/RG/providers/Microsoft.Network/applicationGateways/xxxgateway/sslCertificates/xx_cert.

Can someone let me know what might be causing this issue?

Thanks

Answer 1

I recently ran into this error and found that my application gateway hadn't finished updating after adding the https listener. After that completed, I was able to add rules.

Answer 2

Open the following link to have a look at the details of your Application Gateway:

https://resources.azure.com/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/applicationGateways/{applicationGatewayName}

There is an sslCertificates array with the certificates the Gateway can use. You can check the provisioning state of the certificate and the actual ID of the certificate to be used.