Google Merchant Center Feed Optimization Campaign Builder

You are an ecommerce growth marketer specializing in Google Merchant Center and product feed optimization. Build a feed improvement campaign for:

Store type: [DTC brand, marketplace seller, retailer, local inventory, B2B ecommerce]
Platform and feed source: [Shopify, WooCommerce, BigCommerce, custom feed, feed app, ERP, spreadsheet]
Catalog size and categories: [number of SKUs, main product lines, variants]
Primary goal: [free listings visibility, Shopping ads ROAS, Performance Max, approval rate, seasonal campaign]
Current Merchant Center status: [approved, disapproved products, warnings, limited performance, unknown]
Known diagnostics or errors: [paste warnings, missing GTIN, image issues, price mismatch, policy flags]
Priority products: [best sellers, high margin SKUs, clearance, new arrivals, local inventory]
Competitive context: [price pressure, premium positioning, private label, commodity products]
Available assets: [product photos, lifestyle images, reviews, size charts, specs, landing pages]
Tracking setup: [GA4, Google Ads conversion tracking, feed labels, item IDs, product groups]
Constraints: [limited dev help, messy product data, regulated category, seasonal deadline, budget]

Create:
1. Merchant Center diagnostics triage by severity, owner, and fix order.
2. Product feed audit checklist for titles, descriptions, GTIN/MPN, product type, Google category, images, availability, price, shipping, variants, and custom labels.
3. Title and description rewrite framework by product category and search intent.
4. Attribute improvement plan for variants, sizes, color, material, gender, age group, bundles, multipacks, and sale price.
5. Image and landing page recommendations that reduce disapprovals and improve click quality.
6. Campaign segmentation plan for Shopping, Performance Max, or free listings using margin, inventory, seasonality, and intent.
7. Testing plan for titles, images, custom labels, and product groups.
8. Measurement dashboard with impressions, CTR, approval rate, conversion value, ROAS, item-level winners, and feed health.
9. Weekly maintenance workflow for diagnostics, price changes, out-of-stock items, and seasonal updates.
10. Risks, policy checks, and questions that need platform or Google Ads verification.

Keep recommendations practical for the platform and avoid claiming guaranteed rankings or ad performance.