You could begin describing conditions that got you a probation letter (immaturity, poor study habits, family issues, work hours, whatever). Most employment verification letters usually just state that the party is employed, when employment started, type of position and possibly salary.The first 90 days of your employment will be under a probationary period. Complete all information within this application in its entirety. • Type or print in ink. It's up to the employer - you should ask them. Be aware that they may be unwilling to do this until you pass the background check. Did you hire a new employee? Learn all about probationary period, what you should keep in mind, and how to do it right at Homebase! To be considered for employment, you must complete and sign this application.