More detail
The setup that matters for day one is small: your KRA connection, your top-selling products and your payment method. With those in place you can trade and keep adding stock as you go.
Onboarding is there to do the heavier lifting, so you are not blocked on a long data-entry task before you can ring your first sale.
Related questions
Can I start selling before loading all my stock?
What do I need ready for setup?
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.