Google recently announced the addition of a Google Shopping exam and certification to Google Partners. This is only available in the U.S. for now.
Google said in a Google+ post:
If you are an agency specializing in Merchant Center and Shopping campaign management, you can now get certified in AdWords by completing both the Shopping and AdWords Fundamentals exams. A certification shows to potential business partners that Google recognizes you as an online advertising professional that can successfully manage Shopping campaigns.
The Shopping exam will test your proficiency in Merchant Center account creation, product data, Shopping campaigns management and optimization best practices. To take the test, start by creating a profile [http://goo.gl/Tzodw7] on Google Partners today. All exams will be listed under the "Certifications" section.
Image via Google