Monday, June 18, 2007 at 10:14 AMBy: Chris Azalde, Google Base Support
We recently added UPC, MPN and ISBN to the list of required attributes for bulk uploads of the Products item type. Providing this information will help us rank items better and allow us to deliver more relevant results to our users. Starting today, we're asking everyone submitting items to Google Base US whose items are in the category of products and use these unique identifiers to begin including them for their items. As we will be using this information to categorize your items, please take particular care in the values you provide for these attributes. Only universally-recognized values should be included for these three attributes. Not including accurate values for these fields can have a negative effect on the ranking of your items. Finally, these new attribute requirements are currently only for items submitted to Google Base US.
For more information about these unique identifiers, please select the specific attribute below:
MPN or Manufacturer Part Number, is the unique part number or code for an item determined by the manufacturer for that product.
UPC or Universal Product Code, is a unique numerical identifier for commercial products, usually associated with a bar-code printed on retail merchandise.
ISBN or International Standard Book Number, is a unique numerical identifier for all commercial books. You can find your book's ISBN on the back of the book along with a bar-code.
If you have any questions about this change, feel free to discuss it at this Google Groups thread. You might also find the answer you're looking for on our FAQ.