Abstract: Various embodiments provide for a pre-validation of various aspects of an application deployment before any resources are provisioned in a user account. Pre-validation can perform checks on aspects such as connectivity and credential-based access for instances to be provisioned in a user account. A determination can also be made as to whether a role exists in the user account that has the appropriate policies and permissions to enable these instances, if provisioned, to have access to external services and resources needed to support the application. These checks can be performed through a launch wizard or deployment service that can collect information though a single console, and can ensure that these checks succeed before the requested instances are provisioned in the user account.