How to Sync Customers or Suppliers with Unified's Accounting API

Unified's Accounting API offers a streamlined approach to syncing customers and suppliers by introducing a single, normalized contact model, known as AccountingContact, that uses boolean flags to indicate roles, thus simplifying the integration across various accounting systems. This model addresses common issues such as duplicate records and complex reconciliation logic that arise from treating customers and suppliers as separate entities. The API provides consistent sync semantics by allowing users to list, filter, and handle incremental updates of contacts using stable identifiers rather than relying on provider-specific IDs. By emphasizing explicit role flags and a unified model, this approach reduces the complexity and maintenance costs associated with traditional methods that require vendor-specific branching. The guide outlines steps for listing contacts, filtering by role, performing incremental updates, and managing contact records through creation, updating, and deletion processes, ensuring a reliable and maintainable synchronization across diverse accounting platforms.