More detail
It helps to separate two things. eTIMS invoices are sent to KRA because compliance requires it, the same as any certified system. That is the point of eTIMS billing.
The rest of your records, your margins, your stock, your customer patterns, are yours to run your business with. If you have specific questions about data handling, ask the Veira team directly so you get a precise answer rather than a guess.
Related questions
Does Veira send my sales to KRA?
Will my data be sold?
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.