You can now set a delivery date / service date for invoices: https://x.com/cakedeskapp/status/1912527898176610730 Here's how you can use the new delivery date field in custom templates: https://cakedesk.app/articles/delivery-date-custom-templates
I have also done this with a Custum field. I then integrated this together with the other data such as date, invoice number etc. into the invoice header. But I think we will need this for the e-invoice in the future. Or the option of declaring fields for the e-invoice ourselves.
I've realised this is at least partially possible with custom fields in the template. However, for it would then probably be nice to have at least a custom field type "Date" - probably much easier and also useful for other cases.
You can now also supply a delivery/service PERIOD (date range). This is available in Cakedesk 1.32.0 :)