Changelog

User-visible API v3 additions and behavior changes are recorded here.

August 27, 2026

Customers, prospects, suppliers, estimates, invoices, purchase orders, and sales orders now return ordered custom-field values and accept complete replacements when created or updated.
Inventory item responses now include associated supplier UUIDs and sparse pricing-tier values. Item creates and updates can replace those pricing-tier values.
Customer responses now include the latest invoice date and lifetime invoiced revenue.
Estimate line details now include the same SKU, variation, location, and inventory thumbnail metadata as other document line responses, including after estimate conversion.

Inventory photo uploads can provide a custom square rendition source, and the new crop endpoint updates the 200, 500, and 1000 pixel renditions without changing the aspect-ratio original.

Inventory item lists now support exact-ID hydration for up to 50 comma-separated UUIDs, including archived and sold unique items within the caller's account and location permissions.

Added read-only endpoints to list and retrieve units of measure. Item categories can now be retrieved, created, and updated with ordered custom-field definitions.
Inventory item responses and writes now support category custom-field values. Item lists can return location-specific inventory totals, variation lists can include location details, and variation-location objects expose their authoritative integer identifier.
Added an inventory photo replacement endpoint that preserves the photo UUID and gallery position.
Added estimate preview endpoints for new and existing estimates. Estimates now support customers or prospects, richer financial and line details, permission-sensitive costs, edit eligibility, and optional revision checks with ETag and If-Match.
Added an invoice-wide manual refund endpoint. Invoice details now include richer customer, discount, tax, line-display, edit-state, revision, cost, and source-document information.
Purchase-order and sales-order details now include richer party, discount, tax, line-display, edit-state, and revision information. Eligible updates support optional optimistic concurrency with If-Match.
Document shipping fields now use shipping_fee; estimates, invoices, and sales orders also expose permission-sensitive shipping_cost values.

Added inventory item photo upload, deletion, and complete-gallery reorder endpoints.
Inventory item responses now include a primary-photo summary and photo count. Individual item responses include the complete ordered gallery, and item lists support include=photos.