The invoice is generated when a customer is ready to be billed. The invoice calculates all quantities and prices for the customer and calculates VAT if specified in your settings. Creating an invoice based on a subscription is defined as a billing cycle. Upodi is running the billing cycle(s) 24x7, and will issue a new invoice at any time a subscription charge is ready to be processed.

The invoices can be automatically exported to one of our integrated [ERP systems](🔗) if this has been specified in your settings.

## One-off payments, or custom billing

Upodi support the creation and posting of custom invoices. Simply navigate to _Finance_ > _Invoices_ and click _Create_ to start creating a new invoice. You can also use the API to post a new invoice, please [read more here](🔗).

## Questions?

We're always happy to help with code or other questions you might have! **Search** our documentation or contact **helpdesk**. You can also chat live with us using the Intercom icon.