It is! Onboarding starts the minute that someone becomes aware of your organization, especially in relation to a job posting. The impression that you give will stick with the person, so you should strive to make sure it is a good one. During the recruitment stage, it is especially important to cover some of the first steps of onboarding, so potential employees know what to expect from your organization. If you have a good onboarding program, you will find that it is easier to recruit quality employees.