Many of us trying to deploy the new D365 environment using LCS and Azure, but due to ARM configuration we face below issue,
Issue: Lifecycle Services can't connect to the Azure subscription using Azure Resource Manager. Click the Microsoft Azure Settings button and edit the selected Connector to provide the required permissions to ERP applications in your Azure subscription. If the issue persists, please contact support with this Id: da1c591d-7360-413c-b370-b51ec1ddef2b
Here are some good links on how we can fix this issue once for all,
Hope this will help.