In your e-commerce store code, call the e-invoicing API to send your customer an invoice.
You can do this whether you're using a ready-made platform such as:
- Woo Commerce
or in your own custom platform.
Make sure you pass a unique
invoice_number to each invoice when calling the API. Use the invoice number to retrieve to retrieve the invoice of a customer order (for example if you want to resend it to your customer).