I’m using the default invoice template – it does what I need it to, to be honest.
New Invoice – the date is yyyy-mm-dd
Listing Invoices – the date is yyyy-mm-dd
Printing Invoices – the date is yyyy-mm-dd
On the previous 2019 version – I have some invoices which printed 12-Oct-2020.
I have Looked in Settings > SI Defaults but I can’t see anything “date format” wise.
In the ini Files within Config, they are set to D-m-Y