If you're new to the company I assume you're a part time hourly employee or prospect. If you make your inside seniority (30 days) you typically get a small raise, then depending on your function you sometimes get another raise around the 90 day mark. If you're a loader and you learn all the loads on your belt you sometimes can get a raise for that, or if you're a sorter or pickoff and learn the sort, same thing. It varies locally and by position.