Configure callbacks with /api_configurations
, setting one or more of these options if needed: 'supplier-invoice' (passive invoice), 'customer-invoice' (active invoice), 'customer-notification' (reject or accept notification), 'legal-storage-missing-vat', 'legal-storage-receipt' (archival receipt). In this way, you will receive a call with the invoice object directly to the URL you provided.
This operation should only be performed when setting up the company for the first time.
If you are interested in the passive cycle, follow this guide first: https://openapi.it/en/blog/register-recipient-code-italian-revenue-agency.html