This is how you would associate your SSRS account(s) with SQL-RD. Associating your SSRS account gives SQL-RD access to reports you wish to schedule. SQL-RD will use stored credentials to access and export reports.
Integrations - SSRS Accounts
Go to View.
Select SSRS Accounts.
SSRS Account Name: Enter the name for the account.
SSRS Server URL: Enter the address of your reporting services server.
Domain\Username: Enter the domain and user for the SSRS Server URL.