Hello,
In Express Invoice, in Option / Invoice / Custom Fields, I would like to add a custom field with the year date (only the year, by example : "2023").
And I would like that this field could change automatically when the year change. By example, if we are in 2023, the custom field shows "2023", then if we are in 2024, the custom field shows "2024", etc ...
How to do this ?