There are a few requirements that you'll need to meet to be able to set up a Shopping campaign and create Shopping ads.
Your content for Shopping campaigns and Shopping ads needs to comply with the Google Shopping Policies, which are different from the AdWords Advertising Policies. You'll need to make sure that your type of business, products, promotions and website meet the requirements for Google Shopping before you begin advertising.
You'll need to be able send us up-to-date product data at least every 30 days. This data needs to meet our standards for data quality. These standards are in place to help provide users with the best shopping experience, and we enforce the standards to help your ads perform better.
The standards for submitting your product data are in the Products Feed Specification. You'll use Merchant Center to submit your product data regularly.