How to cancel the purchase requisition?

Summary:

In our scenario, the Planning shows a demand for a work order. Now, there's already been a committed Purchase Order for this work order, but I think the lead time for this will be past due since it will be shipped in February. The plan generates a Purchase Requisition (same item same quantity) to fulfill and promise the work order on the said time. Can we cancel the purchase requisition to pursue the purchase order?

Action for each will be:

Purchase order = Cancel

Purchase requisition = reschedule

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