In the participant module settings -> invoices tab you can set your invoice settings.
Automatically let the application generate and send out invoices for your participants when they register.
Zero charge invoices:
If this setting is enabled, invoices will be generated even if the total amount of the invoice is zero.
Primary invoice data:
Determine whether the address included in the invoice should be taken from the billing address (if there is one) or from the personal data.
New invoice for same total amount:
Generate new credit notes and invoices for participants who changed their selected items, even when the total amount due is the same as their previous invoice.
Invoice number prefix:
The invoice numbers will be displayed as the entered text, followed by the generated invoice number.
Invoice number length:
The lenght of the invoice number, without the invoice prefix.
Invoice number preview:
An example of how the invoice number will look like.
You can set the number of days after the last invoice/reminder for each new reminder. You can send max 3 reminders.