Spend Approvers can deny AP Journal Vouchers.
When an AP JV is denied, it is sent back to the initiator to correct and resubmit. Because the change(s) may affect the funds differently, the AP JV will be sent back through the approval path when resubmitted.
This means that the initiator needs to correct the JV and run all of the processing steps to finalize and submit it so that it is introduced back into the approval path.
An email will be sent to the initiator when a JV is denied. The message contains the Journal ID and Journal Date. Having this information will make the search for the JV much easier.
For further questions or more general best practices consult pages 2-3 of the Financial Review and Analysis Guide.