Due to the implementation of Awards/Agreements, the Required Information is missing Alert (Modal) is displayed when attempting to 

1. Add a new Payee, when at least one Award or Agreement does not exist.
2. Edit an existing Payee which was added prior to Version 1.60 being released.

The Required Information is missing Alert (Modal) is also displayed when attempting to add a new Payee if at least one Superannuation Fund does not exist,'

To resolve this alert, please Add an Award or Agreement and/or a Superannuation Fund

Once the above has been completed, new Payees can be added, and existing Payees can be edited.