More detail
Untracked trading hides problems until they are large: slow shrinkage, a line you keep overbuying, money that does not add up at closing. None of these announce themselves.
A record turns guesses into decisions. It will not invent profit, but it stops avoidable losses and gives you something concrete to act on and to show a lender. What that is worth depends on your shop, so the real answer comes from your own figures.
Related questions
Can you put a figure on it?
What gets missed most often?
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.