Payables not updating the approvals status correctly?
In the AME setup I have the attribute REJECTION_RESPONSE set at the value STOP_ALL_ITEMS so if an approver rejects an invoice the WF is terminated and Payables (AP) changes the approval status to "rejected". This is the default setting and functionality.
To find and correct rejected invoices a user uses the search window in the Invoice Workbench (the flashlight) and searches for all invoices within a specific period with the approval status "Rejected". In the vast majority of cases this will find the rejected invoices.