By default, the Billing API is not enabled. If you would like to use the API and benefit from enhanced
invoicing automation, please activate the API via your Support Center Profile page on the Your APIs tab you can generate an API key.

Once generated you must enter at least one IP address that will have access. In total, you can register
two IP addresses. For instance, one for development/test purposes and one for your production

Request Invoice Data

To request the invoice data for a specific period, choose the Purchase Invoice or Sales Invoice endpoint
and select the start- and end date of the invoice period. The URL will be generated automatically once you
enter the end date. You can click the link to test the API and get a response.