To access the cloud instances discovery options click Cloud on the left pane of the Discovery Center Options view. SQL Inventory Manager retrieves the majority of the metrics using SQL Scripts but retrieving performance metrics require the use of API calls.
There are two scenarios when discovering instances:
Scenario 1: Instance is discovered using cloud account. In this case, the account is already associated with this instance so API calls will be using this account
Scenario 2: Instance is not discovered, but added directly from add instance screen in this case, API calls will be using account details added via add instance wizard
For more information on how to discover Amazon Instances refer to AWS Setup.
For more information on how to discover Azure Instances refer to Azure Setup.