Inventory, barcode & IMEIDuplicate IMEI add kyu nahi ho raha?EnglishहिंदीHinglishShort answerHar IMEI unique hona chahiye; existing stock aur transaction history check karein.Related questionsProduct aur service me kya difference hai?→Opening stock kaise add kare?→Barcode scan karke billing kaise kare?→IMEI aur serial number tracking kaise work karti hai?→