This document provides information and guidance for creating key performance indicators (KPIs) for an accounts receivable assistant position. It lists common KPI materials and metrics, steps for building a KPI system, mistakes to avoid, how KPIs should be designed, and different types of KPIs including process, input, output, leading, lagging, outcome, qualitative, and quantitative. The overall goal is to help evaluate job performance and align it with company objectives through an effective KPI measurement system.