I need a robust, custom link that keeps WooCommerce and Zoho in perfect two-way harmony. Whenever an order, customer record, or product is created or updated in one platform, the change must appear automatically in the other—no cron exports or manual pushes. Core behaviour • Orders, customers, and products are the objects in scope. • “Last update wins” will settle any conflicting edits, so timestamps must be tracked precisely. • Both APIs will be accessed with secure API-key authentication; keys will be provided. • The solution has to recover gracefully from network hiccups, rate limits, or malformed payloads and log issues in a way my team can act on quickly. Tech expectations You may write the sync as a standalone PHP plugin, a lightweight Laravel service, or another architecture you can justify, but it must run efficiently on a typical WooCommerce stack and respect Zoho’s limits. Caching, queueing, and batch operations should be used where they improve reliability without risking data loss. Deliverables (all required for acceptance) 1. Production-ready code with clear inline comments. 2. Setup guide and maintenance documentation that a mid-level developer can follow. 3. Post-deployment test plan covering edge cases—simultaneous edits, bulk updates, API outages. 4. Brief hand-off call or recorded walkthrough. We’ll run the integration against a staging environment first; once it syncs flawlessly for 72 hours, we’ll promote it to live. Let me know your preferred toolset, estimated timeline, and any questions you need resolved before you begin.