Google Merchant Promotions, also referred to as Google Special Offers, is a feature of Google Shopping, which enables users to highlight special offers. This is also called Merchant Promotions.
Consumers rely on Google to help them find the perfect product from the right store at the best value. Merchant promotions give you the opportunity to highlight the benefit of purchasing from your store at the moment consumers are deciding where to shop.
Why use “Merchant Promotions”?
Merchant Promotions help differentiate your products and store and can increase both your click through rate and conversion rate. Google enables potential buys to filter the results so that the special offers show up first. Furthermore, the service is free. However, CPCs do still apply, in other words if a user clicks on the promotion button, it is the equivalent to them clicking on the PLA link.
What types of promotions are accepted?
Various types of promotions are accepted, including: £ off, % off, free gifts and buy more save more and promotional codes. The promotions must be available to all clients (ie: not only to first time users, card holders, etc). Furthermore, all promotions are limited to 6 months and must be redeemed/recognised at the checkout. Find out more regarding Merchant Promotion guidelines here.
You have to fill the form and apply for it after logging in from your merchant account and after that team member of Google Merchant center team will contact you for this to go further.
Source: Lengow Blog