Invoice number prefixes

Before moving to a new computer and carrying all of my manager data over using a backup file, I used to have my invoices numbers setup with a prefix number. For example right now I am on invoice #320. My invoices used to say 100320, but now it just shows 320. Is there a setting I am missing or was this feature removed? I liked not standing out like a “little guy” when I billed my clients.

If you transfer to the new computer by importing your backup file onto the new machine, everything should be exactly the same as before, including sequence numbers on invoices. Manager searches for the highest existing number and adds one. You can artificially “bump up” your number by simply editing your latest invoice. Whatever you edit it to (assuming that is now the highest number) will be the base for the next invoice, which will be numbered one higher.