Describe the stages of your sales funnel.
It is fairly standard: a lead comes in, we qualify it, then give a presentation, send a proposal, negotiate and sign a contract. For large clients there may also be a pilot. It is important not to waste time during qualification, so I ask about budget and timing right away.
The stages are correct and early qualification is a sound idea. But there are no figures: conversion between stages, average duration or funnel volume. These are essential for B2B sales.

