SOLUTION: These two issues are due to one and the same configuration issue. See below Figure 2 for the solution.
- Navigate to the System Administration -> Common -> Users -> 'Users' form (Figure 3)
- Highlight the AX user who is having this problem and click on 'Relations' in the ribbon. This must be the user that is hitting the issue as their AX user needs to be linked to a worker. (Figure 4)
- Select the HRM Worker setup for that user in AX in the field 'Person'. The 'User Id' field will already be populated with the user selected in the AX user list. Make sure the 'Effective dates are for before today's date and sometime in the future. If the dates don't encompass the current date, the user won't be able to create purchase requisitions. (Figure 5)