INVOICE_ALREADY_EXISTS

Status: 409 Conflict

What it means

There is already an active invoice with this number from the same other party.

What to do

Check the invoice number. If the invoice is already in the list, you do not need to add it again.

Example of the answer

The API answers with this JSON (title and detail change with the situation and the language):

{
  "type": "https://docs.mbtcompany.eu/errors/invoice-already-exists",
  "title": "Conflict",
  "status": 409,
  "detail": "There is already an active invoice with this number from the same other party.",
  "code": "INVOICE_ALREADY_EXISTS"
}