Connector for Nextens to upload BTW and ICP

We generate information using Invantive from Exact Online. Would be great when we could export/import with Nextens.

Nextens use HTTP REST using token-based authentication on

The access token is valid for 30 minutes after acquisition using a POST to /token with:

  • grant_type: refresh_token
  • client_id: the identifier of client app
  • client_secret: the secret code for client app
  • refresh_token: refresh token provided

The Nextens refresh token is valid for five years.

The API’s for sending client data to Nextens are:

  • /klanten/persoon
  • /klanten/onderneming

It is unknown whether it is possible to upload BTW and/or ICP in addition to the customer data.