The rep arrives to collect, and nobody knows exactly what is owed

The problem

A pharmacy buys on credit from more than one distributor, each with its own invoice, its own discount and its own collection day. What is owed goes into a notebook, so the real figure only appears on collection day, in front of the rep.

Items nearing expiry go back without ever coming off the distributor’s account, so the pharmacy’s reckoning and the rep’s disagree, and the argument runs on paper that settles nothing.

What we built

Every purchase invoice is recorded on credit with its payments, and every distributor has a statement that goes out on WhatsApp.

Stock is held as batches: each batch with its own expiry date and its own purchase cost, and dispensing draws from the nearest to expire first without the pharmacist having to think about it.

A return to the supplier comes off their account the moment it is recorded, and lists of what is approaching expiry appear weeks ahead, so it goes back while it still can.

What changed

Collection day became a review of a statement both sides already hold, not an argument over a notebook.

What is nearing expiry goes back or sells before it becomes a loss.

Dispensing never stops when the connection drops, because the data sits on the pharmacy’s own machine.