Why is it a best practice to set a bid for the “everything else in all products” product group?

Why is it a best practice to set a bid for the “everything else in all products” product group?

  • A) To make it easier to target a location for certain products
  • B) To be able to have one products group for mobile devices
  • C) To include items not part of other product groups in your campaign
  • D) To control the websites on which your Product Listing Ads appear

The correct answer is:

  • C) To include items not part of other product groups in your campaign