Document Category Override Payables option is disabled

Applies to:

Internet Expenses - Version: 12.0.4
This problem can occur on any platform.

Symptoms

Expense Report Export is rejecting an expense report with the
Rejection Description:
Document Category Override Payables option is disabled

Cause

Oracle Payables Responsibility
Navigation:  Setup -> Options -> Payables
Invoice tab -> Main Section
Allow Document Category Override was unchecked.

Solution

1)  Access the appropriate Oracle Payables Responsibility
2)  Navigation: Setup -> Options -> Payables
     Invoice tab -> Main Section
3)  Check:  Allow Document Category Override