Duplicate invoice
documentedCreate a copy of an existing invoice (as Draft).
POST /v2/invoices/{id}/duplicateInvoicesno implementation yet0 runsInput
invoice_id*
Invoice ID
123
OAUTH2_ACCESS_TOKEN*
OAuth 2 Access Token
Enter access token
OAUTH2_TOKEN_TYPE
Token Type
Bearer
Calls FreeAgent as you (your API key is your account); keychains.dev holds the credentials.