Operational KPIs worth tracking
Tracking 20 numbers means tracking none of them. Pick four.
Jobs per week, average ticket, callback rate, on-time rate
Those four cover most operational health for a service shop. Adjust the language to your trade, but keep it to four.
Weekly, visible to the team
Tracked once a quarter is for the owner's spreadsheet. Tracked weekly and posted in the shop is for the team. Operations improves when the team can see the numbers.
Trend over time, not absolute
The number going the right direction matters more than the absolute level. Watch the slope.
Take your version of this question further
This is one operator-tested angle on the question. Your shop, your size, your trade, and your team change the answer. Ask your specific version inside Ask a Shop Owner to get a response grounded in how owners like you actually handled it.