Fortnox error: 2001089

Description

The error occurs when the Integration Platform tries to send an event linked to an existing invoice in Fortnox. The message means that the invoice in Fortnox has a payment date that is earlier than the invoice date, which is not allowed. Therefore, the export is stopped.

Cause

• Incorrect date in the source system – the payment date has been set earlier than the invoice date.

• The invoice was created in the ERP system and dated before the payment date.

• Time zone or date conversion error causing incorrect dates to be sent.

Action

• Correct in Fortnox or the source system

  • If possible, adjust the invoice date in Fortnox.

  • Re-run the payment export.

  • Alternatively, register the payment manually.