By Jackson Blackledge, ECHELONN.IO
Google Merchant Center Setup & Optimization Checklist
Get the ultimate GMC setup and optimization checklist for 2026. In this guide, you’ll discover how to configure your Merchant Center to maximize your Shopping Ads & PMax performance. We’ve run this across hundreds of accounts, and it’s definitely one of the biggest drivers behind our results.
Google Merchant Center Setup & Optimization Checklist
Product Feed Attributes Bible
- The Groups
- Columns in the Checklist
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📌 Open any row to reach that attribute's official Google documentation. Where Google documents several attributes on one page, every row points at the shared page and names it.
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Google Merchant Center Feed Attributes (Updated October 2026)
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