Mix Mobile.

The problem

Mix Mobile sells phones in Namangan and Tashkent. In phone retail every device is unique: it has an IMEI, a condition and a purchase price. Customers often pay in installments, and phones get swapped or returned. With notebooks and spreadsheets it was hard to see who owed how much and which phone made how much profit.

What I did

• Two branches, one database. A seller only sees their own branch, the owner sees everything. Phones can be moved between branches.
• Every phone on its own. Model, condition, IMEI, purchase and sale price. The list uses photo cards, so sellers recognise a device at a glance.
• Sales and debts. With installments the customer balance updates itself. On a return or swap the old sale is closed and the new one is linked.
• PDF receipt. One click gives a receipt with the IMEI for every sale.
• Telegram bot. The owner checks status with /holat, /bugun and /qarzlar, and gets a report every day at 9:00.
• Excel. Old spreadsheets can be imported and reports exported.

Result

The system went live in June 2026. The store's daily numbers are now in one place: who bought what, how much debt is left and which phone made how much profit. Client data is private, so an illustration is shown here instead of real screens.