More detail
Credit is a real part of how many dukas keep loyal customers, so tracking it properly matters. The honest position is to confirm what is supported rather than assume a feature exists.
If a dedicated deni ledger is not part of the app, the practical answer is to keep a tidy separate record of names, amounts and dates, and to raise the need with the team, because demand for it is widely shared among small shops.
Related questions
Does Veira have a deni book built in?
Confirm this with the team rather than assume. Credit tracking is a specific need, and the honest answer is to check what is supported today.
How should I track credit in the meantime?
Keep a clear separate record of who owes what, how much, and since when, and tell the team you need this, since it is a common request.
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.