Knowing the credentials of a System Administrator (e.g. adminsitrator) and of users authorized to initiate, submit, authorize and approve requisitions (e.g. vsrmanager1 and divo1);
Setting one's own email address as that of the divo1 user and verifying it;
Submitting and authorizing a requisition e.g. for Cuamba or Lurio as vsrmanager1;
Logging into the application as divo1 and navigating to Requisitions > Approve.