POs Profile cannot be saved

ERPNext
,
5

I found this to make it work…
If there are 2 or more companies setup:

  1. If you’re using POS mode online, leave blank “Default Company” in Global Defaults in Setup module.
  2. If you’re using POS offline, “Default Company” in Global Defaults must match with “Company” in Point-of-Sale Profile

Yes… it’s a bug.