Google announced on Google+ that they've expanded the partner program to include shopping campaign certification.
Google said "we’re very excited to extend the Google Partners certification offerings to include a new Google Shopping exam in the United States."
This Shopping exam will test your proficiency in Merchant Center account creation, product data, Shopping campaigns management and optimization best practices.
To get certified you need to sign up for Google Partners and then complete the exams under the Certifications section. Google said:
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.
Several advertisers already took the test and passed. One said "Easy test if you ever worked on a shopping campaign. Good test with just the right type of questions to test experience / knowledge."
Forum discussion at Google+.