Purchase Requisition is not getting approved even when the approver has enough limits

Hi,

We have multiple purchase requisitions which were forwarded to the supervisor for approval but even when the supervisor has enough limits to approve the document and approves the requisition, the requisition is still going to the manager for approval again. kindly advice if we can resolve this on R12.2.5 and please let me know if we can stop the approval process on the primary approval by supervisor.

Thanks