Following are the pre-requisites that would be required once you sign up. Make sure all below requirements are fulfilled.
BambooHR Account
You will need to add your BambooHR sub-domain
BambooHR API Access
Give BambooHR API access permissions (username and password)
ADP SFTP Access
Give SFTP access permissions (Company Identifier, Account Coe, Certificate / Keys of ADP)
ADP Payroll
Provide ADP payroll clerk email id
Payment
Provide company credit card details for subscription setup