More detail
A mismatch is information, not just a headache. Because the system separates sales by cashier and shift, you can narrow a shortfall to a person, a time and often a cause.
Check the obvious first, change errors and unrecorded cash, then the flags: unusual voids, discounts or refunds on a login. That turns a vague loss into a specific question you can ask.
Related questions
How do I find where the gap is?
Is the system figure reliable?
Veira gives Kenyan shops one calm app for selling, M-Pesa, KRA eTIMS and stock, with a free terminal. Book a demo and see it set up for your trade.