We will use below product as an example;

Barcode : 0190198512369
Product Name: APPLE WATCH S3 GPS CELL 38 GOLD PINK SAND SPRT BND
Serial Number : 359874563145236

1. Navigate to Stock > Add to Stock and look up for the product either using product name, supplier product code or generic barcode.
2. Click on the result and ensure the product details are correct as per the supplier invoice. 
3. Scan or manually enter the serial number/s in Serial Number Box. You may enter multiple serial number's if there are more than one of the same product and within the same supplier invoice number.
   
4. Enter Supplier Invoice Number and click OK to complete stock entry.