Deferred Approvals for PO/Req

Ever faced this issue?

Approver responds to approval notification and still the document(Requisition or Purchase Order) shows status "In Process"? And the recent approval not recorded?

When this issue shows, chances are that the approver is a "Delegated Approver" means not the original approver. In this case for Delegated Approvers, to avoid context issues, the workflow is set to "Deferred" mode. You have to run Workflow Background Process to move the deferred workflow to next stage.

Refer Metalink note 387489.1 - Requisition Approval In Deferred Status If Notification Is Delegated for more.