Don't put in a two weeks. As soon as your onboarding is complete and you have a scheduled first day of training you quit without notice.Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. No advance notice of termination or resignation is required. Are you getting ready to leave your job? Here's how to write a professional two weeks' notice resignation letter, with examples. It is customary to give your manager or human resources department at least two (2) weeks' notice of your resignation date.