Lot number (Not available in SenangUrus-Enterprise) What is Lot Number? Enabling Lot Number To  enable Lot Number tracking  in the system, follow the steps below: Go to  Settings → Business Settings → Purchases Check the  Enable Lot Number  checkbox Click  Update Settings  to save the changes Once enabled, you’ll be able to assign  Lot Numbers  during both purchases and opening stock entries. Two Methods to Add Lot Numbers Method 1: Adding Lot Number from Purchases When adding a  Purchase Entry , the system will display a  Lot Number  field for each product. Enter the  Lot Number  manually during stock entry. Method 2: Adding Lot Number from Opening Stock When adding  Opening Stock , a  Lot Number  field will also be displayed for each item. Fill in the appropriate  Lot Number  for accurate tracking. Selling products from specific Lot Refer to the  POS selling documentation  Lot number description. Displaying product lot number in the invoice Make sure the lot number feature is enabled as mentioned above. Go to invoice layout and enable “Show lot number” If the lot number is added when adding Purchase or Opening stock then when making sales it will display the lot number & product expiry dropdown. Select the lot number which you want to sell.  Then in the print invoice, it will show the lot number.