Help centre

Open 9POS, tap Get started, enter your shop name and choose your currency. That is all: no account is needed. You can change the name, phone, address, receipt details and payment methods later in More, Store settings.

Open Products and tap the plus button. Enter a name and price; code, photo, category, stock and cost are optional. You can also scan a barcode to fill in the code, or import many products from a CSV file in the same menu.

Yes, everything works offline: selling, printing over Bluetooth, stock, reports and backups to a file. Internet is only needed to download the app or open links such as this help centre.

Home shows today's sales, shortcuts (scan, add a product, quick sale, sale templates), suggestions such as low stock, and your recent sales.

Tap products in the Products grid (or scan them) to add them to the cart, then tap the cart bar to review and finish. Choose how the customer pays and tap to complete; the receipt screen lets you print or share it.

Quick sale lets you ring up an amount that is not a product, for example a custom price. Find it among the quick actions on Home.

Hold the current cart from the cart menu, give it a name such as a table number, and serve someone else. Reopen it later from Held sales.

A template is a saved set of items you sell together, such as a breakfast combo. Create it once, then add it to a cart in one tap.

Cash, card, bank transfer, QR pay and pay later. For QR pay, add your own bank or wallet QR image in Store settings, Payment methods; it is shown full screen at checkout. VietQR, PromptPay, DuitNow, PayNow, UPI, QR Ph and bank QR are supported.

You can add a discount to the cart before paying. A finished sale can be corrected, cancelled or refunded from its detail screen; stock goes back on the shelf unless you choose not to return it.

Tap the scan button in the tab bar (or the side rail on a tablet) and point the camera at a barcode or QR code. Each scan adds the matching product to the cart. Allow camera access when asked; the camera is used only for scanning.

Put the scanner in HID (keyboard) mode over USB or Bluetooth, pair it with your phone, and set it to send Enter after each scan. Then open the Scan tab and scan; 9POS asks before first use. A step-by-step guide is in More, Hardware, External scanner.

Make sure it is in HID keyboard mode and sends Enter or Tab after each scan. Use the scanner test in More, Hardware, External scanner to see whether 9POS receives the code. If it types twice or too fast, adjust the typing speed in the scanner settings.

The product does not have that code yet. Open the product and add the barcode, or scan the code from the add-product screen to create it.

Turn the printer on, pair it in your phone's Bluetooth settings first, then open More, Hardware, Receipt printer in 9POS and pick it from the list. Allow Bluetooth access if the app asks. Print a test page to check.

Both work. Choose the paper size of your printer in the printer settings; 58 mm fits fewer characters per line, so item names wrap sooner. If the print looks cut off or too narrow, change the paper size.

Open the printer's advanced options and try the Vietnamese character set. If your printer cannot show accents at all, turn on Remove accents. The character test shows how the printer handles each set.

Yes. For these languages 9POS prints the receipt as a picture, so the printer does not need the language built in. Picture receipts can print a little slower than text.

Check the printer has paper and charge, is within a few metres, and is shown as connected. Reconnect it, print a test page and try again. In the advanced options you can copy the last print details to send to us.

Yes: price, QR and barcode labels for your products, on a roll printer or an A4 sheet. Open Products and choose labels, or find label printing under Hardware.

Yes. From the receipt screen share it as a PDF to any app. A receipt QR lets you scan it later to open the sale.

Turn on stock tracking for a product and enter how many you have. Each sale takes items off, and the product shows low stock when it falls to its alert level.

Use Receive stock in the Inventory section of More: choose the products and quantities (and cost, if you like), name the supplier and save. Stock goes up and the movement is recorded.

Start a stock count, add the products you counted and enter the real numbers. When you finish, 9POS applies the differences and logs them in the stock history.

A shopping list of what to reorder. Add products from Low stock or from a product page, then mark them restocked when the delivery arrives. You can also share it as a CSV.

Yes. Import needs a UTF-8 .csv with a name and a price column; code, stock, category and cost are optional. Export products as CSV from the Products menu.

A variable product has options such as size or flavour, each with its own price, code and stock, so you can sell and count them separately.

On the checkout screen tap Customer and pick someone from your list, or add a new person. Walk-in customers need no record.

Choose Pay later at checkout, pick the customer, and optionally set a due date and a partial payment. The amount appears under Debts.

Open Debts, choose the customer's debt and add a payment, in full or in part. When it reaches zero the debt is marked paid.

No. 9POS is for the shop: customers do not log in. You can share a receipt with them.

Open More, Backup and restore and tap Create backup. The file holds products, sales, customers, debts, stock records, settings and photos. Save it to a cloud drive or send it to yourself so it is not only on the phone.

Create a backup on the old phone and move the file across, install 9POS on the new phone, and choose Restore from backup. Everything in the app is replaced with the backup, and a safety copy is saved first.

9POS shows when you last made a backup. Make one at the end of a busy week, and always before changing phones or resetting your device.

Sadly your data cannot be recovered: 9POS has no account or cloud copy, which is also why nobody else can see it. Back up regularly.

Vietnamese, English, Indonesian, Thai, Filipino, Spanish, Brazilian Portuguese, Hindi, Chinese, French, Japanese and German.

Open More, Store settings and choose Language, or follow the device language.

You choose your currency when you set up the shop. Changing it later changes how amounts are shown; it does not convert past sales.

Yes. On a tablet 9POS uses a side rail for navigation, shows the cart next to the products and the camera, and shows lists and details side by side.

Yes, in both orientations. The layout adapts to the window size.

Yes. Pair a Bluetooth printer and, if you like, an external scanner; the cart stays on screen while you sell.