Update Invoice
Update an existing invoice
PUT
This endpoint updates an existing invoice. Only draft invoices can have their line items modified. Sent invoices can only update certain fields.
Authentication
This endpoint requires a valid API key withinvoices:write permissions.
Path Parameters
The unique identifier of the invoice
Request Body
Update due date (YYYY-MM-DD)
Update payment terms
Update invoice notes
Update line items (draft invoices only)
Update billing address
Update custom fields