First interview is in person with the recruiting manager for about 5-10 minutes. If you're skills align with what they are looking for in a potential salesman, then you will be invited to join the sessions that go for a few days. Keep in mind that this does not mean you have gotten the role yet. You will still need to demonstrate that you are a prospect that is competent for the role. After the sessions, they will select a final group.

Contacted one of the managers regarding a position posted online. Scheduled an interview later the week with one of the reps. Was interview by a desk manager and finally asked to display some sales skills. I was hired on the spot, and was asked to check in with the company later during the week to finish background check and drug check.