KPI full form and meaning
KPI stands for Key Performance Indicator. It is a number, followed over time, that tells you whether something important is going well. A KPI is not a description or an opinion. It is a figure with a definition, a period and usually a target: conversion from enquiry to order last month, average first response time this week, renewal rate this quarter.
The word doing the most work in the phrase is key. A company can measure hundreds of things. Only a few of them describe whether the work is succeeding, and only those few are KPIs. The rest are metrics: useful when you are investigating something, but not what anyone is judged on.