I don’t have the option to set up Product Matching keywords

This is because your company is not setup as a manufacturer/supplier in your company profile. To set this, click on your name in the top right-hand corner of the screen and go into your account settings. Once in your account settings, click on “Edit Company Profile”. Under section 3 – Business Category, make sure that Manufacturer/Supplier is checked. Once Manufacturer/Supplier is checked, the “Product Matching Keyword” will be available.