Google Merchant Promotions have been running for some time but the whole process sometimes its time consuming and also confusing when it come down to the promotions and what is allowed. Merchant promotions give you the opportunity to highlight the benefit of purchasing from your store at the moment consumers are deciding where to shop.
From our experience with the Google Merchant Promotions we usually see an increase on CTR and Conversion Rates. The biggest challenge though is getting the offer right and getting it approved by Google. The guidelines are very strict and in some cases time consuming. It usually takes up to 48 hours to get an offer approved. Below we have put together a simple table on what is allowed and what is not.