Can't access an API end point from Azure Logic App even after white listing the Outbound IP

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Posted on by The CRM Developer

So recently we came across a scenario. Our customer has an API hosted. They have restricted access to their API end point for the unknown IP addresses. Now after whitelisting our Public IP on their end we are able to access their API via Postman and even get the response.

But when we try to do the same for logic App we don't succeed.

So we want to access the same end point from our Azure Logic App. Now Azure Logic App has a Runtime Outgoing Ip Address. Now even after our Outgoing/Outbound IP address of Logic APP is whitelisted on the API end why cant we consume their API.

We get the below error message.

The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.

Not sure if we need to share some other IP or we are missing out something.

Any feedback is much much appreciated.

Thanks!

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thonda on at

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Hi

Follow these links and disable restrictions both on the ip addresses and fqdn of required services.

docs.microsoft.com/.../logic-apps-limits-and-config

docs.microsoft.com/.../limits-and-config

Regards,

Praveen T

D365 Customization Support Engineer

Microsoft Corporation

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