Update invoice
documentedUpdate fields on an existing invoice.
PUT /accounting/account/{accountId}/invoices/invoices/{invoiceId}Invoicesno implementation yet0 runsInput
account_id
FreshBooks Account ID
Enter account ID
invoice_id
Invoice ID
Enter invoice ID
due_offset_days
Due offset days
Enter number of days
Calls FreshBooks as you (your API key is your account); keychains.dev holds the credentials.