Debt notebook: how to track customer credit on a phone

A notebook is reliable right up to the first dispute. The customer says he paid, you show the entry, he replies that he topped it up later and you simply did not cross it out. There is no proof, the relationship with a regular is worth more than the amount, and you write the debt off in your head.

Its second weak spot is that only its owner understands it. The moment you step out for half a day and put your son or a clerk at the till, the unfamiliar handwriting and shorthand turn into a puzzle. Someone takes credit, no entry appears, and by evening the total does not add up.

Most of all: to know how much you are owed in total and whose due date has passed, you have to leaf through the notebook page by page. By the time you finish leafing, the moment to call the debtor has already gone.

The debt notebook kept the count for years, and what needs changing is not the habit but its fragility. In BirLiy customer debts appear in the app instead of the notebook: who owes how much and when they promised to pay, all in one list on your phone.

Each customer has a separate entry. When the customer pays back part of the amount, the balance updates on its own, and you do not recalculate in your head at every visit. The payment history is saved, so in a dispute you lean on a record, not only on memory.

Overdue debts are gathered into a separate list. In the morning you open the phone and see at once who needs a reminder, without leafing through anything.

For a corner shop, nasiya is not weakness but a way to keep the neighbor who would otherwise cross the street. The regular you trust until payday comes back to you specifically, and over time that is your revenue.

The same debt drags you down when it has no face, no date, and no ceiling. To a stranger, with no stated return date, with no entry made on the spot, it is better not to give credit. It is not the debt itself that is dangerous but debt without limits, which you only notice once there is too much of it.

A simple way to decide on the spot: give each customer a limit that makes sense to you, and hold it. In BirLiy you can set a debt limit per customer, and when the amount nears it, the app reminds you. You make the decision, and the phone holds the memory for you.

Another weakness of the notebook is that it is cut off from the shelf. The sausage went out on credit, it is not in the sales, on paper it is still in stock, and by evening the count does not match for no clear reason.

In BirLiy a product given on credit is recorded as a sale and reduces the stock on hand the same way a cash sale does. Whether you handed it over for cash, by QR, or on credit, the stock stays correct in all three cases.

At the end of the day the owner sees both the sold goods and the unpaid debts in one place. There is no need to reconcile the notebook against the till and the stock separately.

Switching to tracking credit on a phone needs no new hardware, an ordinary smartphone is enough. If the shop loses internet, BirLiy keeps working in offline mode, and when the connection returns the entries sync on their own.

The starting debts from the notebook are entered once: the customer's name, the amount, the return date. After that each new debt and each partial payment is recorded in a few seconds, right in front of the customer.