Home » Google Shopping Certification » Your client is working with an agency to set up a product feed in Google Merchant Center, but the agency is not sure which attributes to include. Which attribute is optional? Your client is working with an agency to set up a product feed in Google Merchant Center, but the agency is not sure which attributes to include. Which attribute is optional? by Editorial Staff Advertisement 15shares Facebook LinkedIn Pinterest Twitter Email image_link availability product_type price Join our listSubscribe to our mailing list and get interesting stuff and updates to your email inbox. Thank you for subscribing.Something went wrong.We respect your privacy and take protecting it seriously