Barcodes are auto generated within each item, after data is entered you can tap the barcode icon on the right of each attribute to display the barcode. We generate barcodes for UPC, SKU, serial number and part number attributes. Do not use UPC for custom code since this attribute has special length and check digit. For UPC, serial number and part number with use the standard that correspond to each other.
For custom codes use always the SKU attribute, under the company settings you can choose what type of barcode you want to generate for SKU (QR, code 128 and others). It is recommended use QR type for SKU since it is better for scanning code with camera and can contain more data.
Barcodes are generated as images. You can print images right from the app or share the image for placing all images together in a document for printing.