When copying an existing invoice or purchase into a fresh new invoice or purchase please DO NOT reset the date to today, but rather leave it as the invoice being copied.
For instance, I sell many times a day the same product, with the same currency exchange value to different customers.
It's quite annoying and time consuming having to always change the date back to the original invoice/purchase's date, especially if I am a bit behind with bookkeeping.
Thanks a lot!!!