Changes required in payments & receipt vouchers, Invoices, and Payslips

You are right Sir, but I was looking at other things as well apart from payroll when I said Manager is for Small Business. (The Website home page says for small business too)
For example one can still edit transactions in the system even if they haven’t been given access in settings.
Check out this topic

Until such problems and others are resolved, I consider manager at best in the Desktop Version. (Desktop Version is a full accounting package for a Small Organization.)