How do I enable automatic invoice creation?

This feature is disabled by default, but can be enabled in Company Settings with the checkbox, "Enable auto invoice creation"

Once turned on, BAM users will have invoices created automatically whenever an item is sold. If the buyer already bought an item (and thus already has an invoice), the second item won will automatically be added to their invoice.

When this feature is enabled, there will be no need to "Create Invoices" (unless an invoice was deleted) or "Regenerate" an invoice to see newly purchased items.

Once enabled, this feature can be enabled or disabled on the auction level. If you are using auto-invoicing, but don't need an invoice for a particular auction (such as the occasional real estate auction), you can turn off auto-invoicing for that auction while leaving it enabled for everything else.