Invoice settings control how invoice numbers are generated for a site.
Date and time the invoice settings were created.
Invoice numbering configuration. The invoice number is formatted as {prefix}{nextNumber}{suffix}. For example, INV-1001-2024. See the Invoices API's numbering field for the assigned result on individual invoices.
Revision number, which increments by 1 each time the invoice settings are updated. To prevent conflicting changes, the current revision must be passed when updating the invoice settings.
Date and time the invoice settings were last updated.