Including your product’s SKU (Stock Keeping Unit), MPN (Manufacturer Part Number), and UPC (Universal Product Code) on all product pages is necessary to enhance your PageRank for those codes.
The organic visitors you will get will be at the conversion stage of the funnel with a very high conversion rate!
Not many visitors search Google for SKU, MPN, or UPC. But the few that do are very likely to purchase as soon as they find the product they are looking for.
This is also true for B2B, where it is common for purchasing agents to receive a list of product SKUs and are expected to return a quote with prices and conditions. They will search the web for products matching those SKUs. As soon as the quote gets approved by their client, they will come back to your website, and they will place an order. For products with frequent releases, it can be useful to list the SKU of the current version and the SKU of the previous version to capture searches based on obsolete codes.
