Why Unified APIs Aren't Enough: The "Sync Logic" Trap 🕳️

Unified APIs handle data normalization across providers like Google and Outlook, but they only solve about 10% of the integration challenge. The remaining 90%—sync logic including recurrence calculation, multi-user deduplication, polling/webhook state management, and conflict resolution—must be built by the developer and represents a distributed systems problem. The article argues that connectivity is not synchronization and recommends platforms like Aurinko that handle the full sync engine.