Merchant API migration documentation, from source evidence to live Merchant Center validation.

Start with no-upload discovery, one suspicious code file, a focused ZIP, or a merchant workflow checklist. Add optional read-only Merchant Center validation when account evidence is required.

Scan inputs include ZIP source, pasted code, and a merchant checklist. Submitted source is statically analyzed; project dependencies are not installed and submitted code is not executed.

Read reports in this order: cutover status, critical and high findings, NOT_VERIFIED paths, file evidence, scanner health, skipped files, coverage limits, validation checklist, and official references.

Reports support sanitized HTML, CSV, and JSON exports. Users can delete submitted source after review and can compare a new report with a previous report ID and token.

Google Merchant API migration concepts covered by this guide include Cloud project developer registration, OAuth and Merchant Center access, ProductInput versus processed Product resources, data sources, product resource names, customBatch replacement, retry behavior, concurrency, and sub-API versioning.

Optional live validation uses a numeric Merchant Center ID and short-lived Google OAuth access token to read API access, data sources, processed product samples, product issues, and account issues. Refresh tokens are not stored.

The migration playbook covers ownership inventory, baseline evidence, static checks, ProductInput and dataSource mapping, live test workflow, rescan comparison, cutover control, rollback, and post-cutover reconciliation.

The visual documentation includes real production screenshots of the scan workspace, sample report, methodology, and video guide hub, plus a captioned product walkthrough.

Google Merchant API documentation remains the API source of truth. Merchant API Cutover Validator is an independent migration-readiness tool and is not affiliated with or endorsed by Google.

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