This method allows you to update an existing invoice item on Komet Sales.




  • Method: POST
  • Content-Type: application/json

Input Parameters:

  • authenticationToken (required)(string:20): Komet Sales security token.
  • invoiceId (required)(integer:20): the Komet Sales invoice internal ID that you want to update. You can obtain this value from the invoice.create API method.
  • invoiceItemId (required)(number:20): ID of the Komet Sales invoice item. This value can be obtained from the invoice.create API method.
  • boxes (optional)(integer:10): new number of boxes.
  • price (required) (decimal:10,2): new unit price.
  • markCode (optional)(string:20): new mark code.
  • productAlias (optional)(string:50): new product description alias.
  • notes (optional)(string:200): new item notes.
  • returnAvailableBoxes (optional)(boolean: 1 or 0): default 0. If it's 1, the response will include the number of boxes available.



  • status (integer:1): transaction status. 1 for success or 0 for failure.
  • message (string:500): description of the status of the transaction.
  • invoiceId (integer:20): invoice ID.
  • invoiceNumber (integer:10): invoice number.
  • invoiceItemId (integer:20): invoice item ID.
  • availableBoxes (integer:10): number of boxes that are available if returnAvailableBoxes is given.

Multicurrency Option Enabled

If the customer for who you are editing an invoice has a different currency, you should enter prices in your customer's currency and the system will generate the invoice in your company's currency, based on the exchange rate set up at the time of the transaction.