Improving the score indicates that your products will perform much better in Google shopping Ads. Here is how you can improve your score.
Each of your products is scored out of 100, the closer the better. Here are a few ways which can help you increase your score for better ad performance.
When you click on improve score you will be taken to a window where you can edit the title and description which plays a key factor in improving the score.
You can also fill in the compulsory details like brand, product type, and google product category which will add to the score.
Lastly, you have to add a proper image in your Shopify store in order to get the optimum score for your products.