{"id":150348,"date":"2026-09-30T09:14:53","date_gmt":"2026-09-30T09:14:53","guid":{"rendered":"https:\/\/docs.daftra.com\/tutorial\/%d8%a5%d8%b9%d8%af%d8%a7%d8%af-%d8%af%d9%81%d8%aa%d8%b1%d8%a9-%d9%84%d9%85%d8%ad%d9%84%d8%a7%d8%aa-%d8%a7%d9%84%d8%ac%d9%88%d8%a7%d9%84%d8%a7%d8%aa-%d8%aa%d8%aa%d8%a8%d8%b9-%d8%a7%d9%84%d8%a3%d8%ac\/"},"modified":"2026-10-12T13:08:17","modified_gmt":"2026-10-12T13:08:17","slug":"setting-up-the-system-for-mobile-phone-shops-tracking-devices-by-serial-number-imei","status":"publish","type":"tutorial","link":"https:\/\/docs.daftra.com\/en\/tutorial\/setting-up-the-system-for-mobile-phone-shops-tracking-devices-by-serial-number-imei\/","title":{"rendered":"Setting Up the System for Mobile Phone Shops: Tracking Devices by Serial Number (IMEI)"},"content":{"rendered":"<div dir=\"ltr\" lang=\"en\">\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">This guide explains setting up the system for a mobile phone and accessories shop: tracking each device by serial number (IMEI) from the moment it is bought until it is sold or returned, with colors and capacities, printing the barcode, selling from the point of sale, and selling in installments.<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">What Will You Need to Enable?<\/h2>\n<table style=\"width: 100%; border-collapse: collapse; margin: 0 0 18px;\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Feature<\/th>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Where to Enable It<\/th>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Mandatory?<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Inventory management<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Apps Manager<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Mandatory<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Track Products by Serial Number, Lot Number, or Expiry Date<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Inventory &amp; Products Settings (not from the Apps Manager)<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Mandatory<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Point of sale<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Apps Manager<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Optional (for quick selling)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Installments management<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Apps Manager<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Optional (for selling in installments)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Work orders<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Apps Manager<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Optional (to follow repair devices)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Brief Workflow<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">1. Enable the apps and tracking \u2192 2. Define the devices with the serial number type \u2192 3. Buy the devices and enter the IMEI \u2192 4. Print the barcode \u2192 5. Sell by choosing the IMEI \u2192 6. Returns and transfers \u2192 7. Search for any device and its history<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 1: Enable the Apps<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the &#8220;Apps Manager&#8221;, enable &#8220;Inventory Management&#8221;, then &#8220;Point of Sale&#8221; and &#8220;Installments Management&#8221; if you need them.<\/p>\n<div>\n<div role=\"feed\" aria-label=\"Chat messages\" aria-describedby=\"_r_69h_\">\n<div>\n<div>\n<div tabindex=\"0\" role=\"article\" aria-setsize=\"364\" aria-posinset=\"364\" aria-label=\"Message 364 of 364\">\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 2: Enable Serial Number Tracking<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From Inventory &amp; Products Settings:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 0 0 18px;\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Setting<\/th>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Options (Default)<\/th>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">What It Does<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Track Products by Serial Number, Lot Number, or Expiry Date<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">On \/ Off (Off)<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Enable it. It cannot be turned off later once tracked products exist.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Negative Inventory<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Stop operations when the quantity runs out for all products \/ Allow only products trackable by quantity \/ Allow all products<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">It is recommended to choose Stop operations when the quantity runs out for all products so that a device that doesn&#8217;t exist isn&#8217;t sold.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Requisitions for Sales Invoices \/ Requisitions for Purchase Invoices<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">On \/ Off<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">When enabled, the IMEI is entered in the stock requisition instead of the invoice, and it cannot be entered in the point of sale. For shops, it is preferable to leave them off.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 3: Define the Devices and Accessories<\/h2>\n<h3 style=\"font-size: 18px; font-weight: bold; color: #111827; margin: 24px 0 10px;\">Devices (by Serial Number)<\/h3>\n<ol style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From &#8220;Add Product&#8221;, enter the device name, the brand, the category, the selling price and purchase price, and the model barcode if there is one.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">In &#8220;Inventory Management&#8221;, enable Track Stock and choose the tracking type = Serial Number.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Save.<\/li>\n<\/ol>\n<h3 style=\"font-size: 18px; font-weight: bold; color: #111827; margin: 24px 0 10px;\">Colors and Capacities<\/h3>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">If the model has more than one color or capacity (such as 128 and 256 GB), create it from Item Groups on the products page: add the attributes (color, capacity) and their options, and the system creates a product for each group of options.<\/p>\n<div style=\"display: flex; gap: 10px; background: #fff8e6; border-left: 4px solid #d97706; border-radius: 6px; padding: 14px 16px; margin: 0 0 18px;\">\n<p><span style=\"flex: 0 0 auto; font-size: 18px; line-height: 1.6;\">\u26a0<\/span><\/p>\n<p style=\"margin: 0; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Warning:<\/strong> make sure the tracking type of each product resulting from the item group = Serial Number before the first purchase operation, because the tracking type cannot be changed after stock movements exist.<\/p>\n<\/div>\n<h3 style=\"font-size: 18px; font-weight: bold; color: #111827; margin: 24px 0 10px;\">Accessories<\/h3>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Cases, chargers, and headphones usually don&#8217;t need a serial number: choose the tracking type = Quantity only, and you can enter their opening balance directly.<\/p>\n<div style=\"display: flex; gap: 10px; background: #f6f8fb; border-left: 4px solid #1a56db; border-radius: 6px; padding: 14px 16px; margin: 0 0 18px;\">\n<p><span style=\"flex: 0 0 auto; font-size: 18px; line-height: 1.6;\">\ud83d\udec8<\/span><\/p>\n<p style=\"margin: 0; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Note:<\/strong> a product with a serial number doesn&#8217;t accept the opening stock when it is created, doesn&#8217;t use multiple units, and cannot be added in a bundle product or a recurring invoice.<\/p>\n<\/div>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 4: Buy the Devices and Enter the IMEI Numbers<\/h2>\n<ol style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Create a purchase invoice (or a manual addition requisition for the opening balance).<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Add the device and enter the quantity.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">In the tracking field, scan or type the IMEI number of each device, and press Enter after each number (the barcode reader presses Enter automatically).<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">The number of serial numbers must equal the quantity entered, then save.<\/li>\n<\/ol>\n<h3 style=\"font-size: 18px; font-weight: bold; color: #111827; margin: 24px 0 10px;\">Entering a Large Number of Numbers at Once<\/h3>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the menu next to the Add button on the invoice or requisition page, choose Copy from Spreadsheet, and paste from Excel the columns: item name\/code, quantity, unit price, and the tracking data (the numbers separated by commas such as: 356789012345671,356789012345672).<\/p>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Example<\/strong><\/p>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Buying 3 devices of the same model: the quantity is 3, and the IMEI numbers: 356789012345671, 356789012345672, and 356789012345673. After saving, each number appears as an independent piece in stock.<\/p>\n<div style=\"display: flex; gap: 10px; background: #f6f8fb; border-left: 4px solid #1a56db; border-radius: 6px; padding: 14px 16px; margin: 0 0 18px;\">\n<p><span style=\"flex: 0 0 auto; font-size: 18px; line-height: 1.6;\">\ud83d\udec8<\/span><\/p>\n<p style=\"margin: 0; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Note:<\/strong> the serial number must be unique as long as the device is in stock (across all products). After the device is sold, the same number can be bought again, which is useful for buying used devices.<\/p>\n<\/div>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 5: Print the Barcode<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the purchase invoice or stock requisition page after saving, click the Print Barcode PDF button; the system prints a label for each serial number. You can customize the label from the Product Label Print Templates using the variable {%tracking_details%} to display the tracking serial number of each piece.<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 6: Sell from the Invoice<\/h2>\n<ol style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Create a sales invoice and choose the client and the device.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">In the tracking field, the numbers available in the warehouse appear; choose the number or scan it with the barcode reader.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Save; the device with this specific number leaves stock.<\/li>\n<\/ol>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 7: Sell from the Point of Sale<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the POS settings, enable in order: Journal Entry per Invoice, then Enter Product Tracking Data, while keeping stock requisitions for sales invoices turned off. These settings cannot be changed while a session is open.<\/p>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">On the cashier screen: scan the IMEI number directly and the device is added with the same number, or choose the product then specify the number from the window.<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 8: Selling in Installments<\/h2>\n<ol style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Create the sales invoice with the device and its serial number and save it.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the invoice page, click Add Installment Agreement.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Enter the installment amount or the number of installments, the payment rate (monthly, for example), and the installments start date.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Follow the installments from Installment Agreements, and they must be paid in order.<\/li>\n<\/ol>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Example<\/strong><\/p>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">A device priced at 12,000, the client paid a down payment of 3,000 on the invoice, and the remaining 9,000 is over 9 monthly installments: the installment amount = 1,000, the payment rate = monthly.<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 9: Returns and Transfer Between Branches<\/h2>\n<ul style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Return: create a refund invoice from the sales invoice and choose the same serial number, and the device returns to stock.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Transfer between warehouses: use a manual transfer requisition and choose the numbers of the transferred devices (the direct Transfer Stock button from the product page doesn&#8217;t work with tracked products).<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Stocktaking: stocktaking sheets support serial numbers.<\/li>\n<\/ul>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Step 10: Search for Any Device and Know Its History<\/h2>\n<ul style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">From the inventory menu, open Product Tracking and search by IMEI number, product, or warehouse, and specify available or unavailable.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">Open the number to see its stock movement: when it was bought and from which supplier, and when it was sold and to which client.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">The tracking list tab on the product page shows its numbers.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\">The report Track Products by Serial Number to display the numbers currently in stock by product, warehouse, category, and brand.<\/li>\n<\/ul>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Repair Devices (Optional)<\/h2>\n<p style=\"margin: 0 0 14px; line-height: 1.9; font-size: 16px; color: #1f2430;\">The system has no dedicated maintenance system, but you can use work orders: create a work order for each repair device in the client&#8217;s name with a description of the fault, and use custom statuses (received, under repair, ready for delivery), then create the repair invoice from inside the work order.<\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">What Is Available and Not Available<\/h2>\n<table style=\"width: 100%; border-collapse: collapse; margin: 0 0 18px;\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Feature<\/th>\n<th style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; background: #f6f8fb; font-weight: bold;\">Status<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Tracking each device by IMEI number<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Entering the numbers with a scanner or pasting from Excel<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Colors and capacities for the model<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available (item groups)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">A barcode for each serial number<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Selling in installments<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available (Installments Management)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">The device&#8217;s movement history<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">The device&#8217;s warranty and its expiry date<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Not available as a feature \u2014 it can be added as an additional field or in the invoice notes<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Replacing an old device with a new one (Trade-in)<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Not available as a feature \u2014 record the purchase of the old device with a purchase invoice then sell the new one<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">A dedicated maintenance system<\/td>\n<td style=\"border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; vertical-align: top;\">Not available \u2014 use work orders<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #111827; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid #eef0f3;\">Frequently Asked Questions<\/h2>\n<ul style=\"margin: 0 0 16px; padding-left: 26px;\">\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Why can&#8217;t I enter the initial quantity of the device?<\/strong> Products with a serial number are entered with a purchase invoice or a manual addition requisition with their numbers.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">A message appeared saying the serial number already exists.<\/strong> The number is currently in stock (perhaps on another product). Search for it in Product Tracking.<\/li>\n<li style=\"margin-bottom: 10px; line-height: 1.9; font-size: 16px; color: #1f2430;\"><strong style=\"color: #111827;\">Why does the cashier refuse to add a device?<\/strong> Because Enter Product Tracking Data isn&#8217;t enabled in the point of sale settings, or because stock requisitions for sales invoices are enabled.<\/li>\n<\/ul>\n<\/div>\n","protected":false},"author":17,"featured_media":0,"template":"","categories":[3255,18731],"tags":[21185,21187,21180,21188,21163,21183,21186,21179,21182,4799,21181,21184,21189],"class_list":["post-150348","tutorial","type-tutorial","status-publish","hentry","category-industries","category-mobile-shops-management","tag-barcode-for-each-device","tag-device-tracking","tag-enter-serial-numbers-by-barcode","tag-how-do-i-know-who-i-sold-the-device-to","tag-imei-en","tag-installment-sales","tag-mobile-shop-software","tag-phone-colors-and-capacities","tag-search-by-imei","tag-serial-number","tag-set-up-the-system-for-a-mobile-phone-shop","tag-the-serial-number-already-exists","tag-why-does-the-cashier-refuse-to-add-a-device"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Setting Up the System for Mobile Phone Shops: Tracking Devices by Serial Number (IMEI) - Daftra Knowledge Base<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/docs.daftra.com\/en\/tutorial\/setting-up-the-system-for-mobile-phone-shops-tracking-devices-by-serial-number-imei\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Setting Up the System for Mobile Phone Shops: Tracking Devices by Serial Number (IMEI) - Daftra Knowledge Base\" \/>\n<meta property=\"og:description\" content=\"This guide explains setting up the system for a mobile phone and accessories shop: tracking each device by serial number (IMEI) from the moment it is bought until it is sold or returned, with colors and capacities, printing the barcode, selling from the point of sale, and selling in installments. 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