how to restrict reopened po or aged po in forecast supply

Hi,

We had initially closed the PO after receiving the invoice. However, after performing a Return to Vendor (RTV) for a partial quantity and validating the debit memo, the previously closed PO has been reopened. Consequently, this PO is now being considered in our planning suggestions, which is causing some discrepancies.

is it possible to Restrict the reopened PO from being considered in the planning process or to Prevent the PO from reopening automatically when validating a debit memo?