You can now manage quotations and link them to sales orders in the freee Sales API
The freee Sales API now supports quotation management and lets you associate sales orders with quotation IDs.
New invoice sending method options in freee Accounting partners API
New options will be available for the invoice sending method in the partners API of freee Accounting around late May 2026.
freee Invoice API now supports report page URLs and freee Sales filters
You can now retrieve report detail page URLs and filter reports created in freee Sales through the freee Invoice API.
You can now use cost management endpoints in the freee Sales API
You can now manage cost budgets and other costs in the freee Sales API, and the code field in deal responses is now required and non-null.
You can now specify partners per line item in freee Accounting deals APIs
Requests to freee Accounting deal APIs can now include partner IDs and partner codes in each line item.
You can now specify line items by code and get partner info in freee accounting APIs
You can now specify line item codes in manual journal APIs and retrieve partner information in deals API responses.
You can now get project lock status and more via freee Sales orders API
You can now obtain project lock status via the sales orders API, and several fields are now required in the detailed order response.
You can now receive expanded response data in the freee Sales Delivery APIs.
You can now view project lock status when fetching deliveries, and the details API always includes department and tag information.
code is now required and cannot be null or empty in freee Sales API
Sending null or an empty string for the code property in freee Sales API project endpoints now causes a validation error.
Sales API responses in freee Sales API have been extended
You can now obtain deal lock status from sales API responses, and several properties are now mandatory in detailed sales responses.