Deleted PO created from fulfilment line. How to create new PO

Summary:

User was editing the incomplete PO from the Manage Order then selected cancel document not knowingly it will delete the PO.

In the fulfilment line (with status PO Created), the deleted PO is shown.

How can user create a new PO on this fulfilment line? Or what will be the next step for her to generate a new PO?

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