Google Merchant Center promotions are a feature that allows you to add coupons, discounts, sales, and more on Google Search, Google Shopping, and Google Images.
A common misunderstanding is that Google Promotions is a checkout redemption system, which means you can not apply markdowns. Most merchants will have a discount running on all products before adding them to the basket. But Google Shopping Promotions are required to be redeemed at the checkout. For example, your promotion is (Get $25 discount when your Order $150 or more), then this calculation needs configuration in the checkout. Free Shipping or Discounted shipping needs to be configured in the checkout and can not be applied before it is added to the basket.
Google Merchant Center (GMC)
You can also add promotions directly in GMC. When you log in to Google Merchant under products, there is a button named promotions. If you can not see this, please read I can’t see the promotions button.
When you are in the promotions section, click on List and then on the blue plus button. You can now add promotions.
Some of you might not be able to add a promotion feed, no need to worry. You can request the option to be activated.
By simply going to Google Merchant Center > Growth > Manage Programs > Promotions > Click on enable.
Currently, you can only have the promotion available in the following target countries.