Create Invoice
Creates an invoice. items is required. allow_post is optional; when true, the invoice is posted immediately after creation (the project must have allow_create_and_post enabled, otherwise the request is rejected with 400).
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.
Request
Must include exactly 3 fractional-second digits, e.g. 2025-12-29T18:00:00.000Z. Timestamps with no fractional seconds, or with a different digit count (e.g. microseconds), are rejected.
Sales personnel to credit for this invoice. Accepts either a ProfileSalesPersonnel id or a Contact id; if a Contact id is given and no sales-personnel record is linked to it yet, one is created automatically.
Per-invoice override of the workspace’s default commission terms.
Must include exactly 3 fractional-second digits, e.g. 2025-12-29T18:00:00.000Z. Timestamps with no fractional seconds, or with a different digit count (e.g. microseconds), are rejected.

