The payroll calendar decides when your revenue starts
Almost every other B2B service can go live whenever the paperwork is done. Payroll cannot. There is a cut-off in every month, and a client who signs on the eighteenth with attendance data still sitting in a supervisor's notebook is not going live this cycle. They are going live next cycle, which means six weeks between a yes and a first invoice — six weeks in which a competitor calls, a finance head changes their mind about outsourcing, or the HR manager who championed you resigns.
This is the single most useful thing to put on a payroll deal record: which payroll month it is targeting, and what has to be true by which date for that to happen. Once that field exists, the sales review changes character. Instead of asking whether a deal will close, you ask whether it will close in time to run in that month — and that question tends to produce faster answers from clients too.