Unit Price Validation in PO confirm OR PO confirmation without zero price

Hi,

Unit Price Validation in PO confirm OR PO confirmation without zero price

http://asharpx.blogspot.com/2018/01/how-to-check-custom-validation-on.html

https://community.dynamics.com/365/financeandoperations/f/dynamics-365-for-finance-and-operations-forum/306295/po-confirmation-with-zero-price/885069#885069

https://community.dynamics.com/ax/f/microsoft-dynamics-ax-forum/261377/po-change-the-unit-price-and-quantity/735284#735284

https://community.dynamics.com/365/financeandoperations/f/dynamics-365-for-finance-and-operations-forum/380114/po-validation-when-using-late-selection-from-the-confirm-purchase-order-screen

Refer below my code BY Chain of command COC

[ExtensionOf(classStr(PurchFormLetter_PurchOrder))]

public final class TEST_PurchFormLetter_PurchOrder_Extension

{

    public boolean validate(Object _calledFrom)

    {

        boolean         retExt = next validate(_calledFrom);

      

        if (retExt)

        {

            PurchLine       purchLineExt;

            while select purchLineExt

                where purchLineExt.PurchId      == this.purchTable().PurchId

                   {

                if (purchLineExt.PurchPrice == 0   && purchLineExt.LineAmount == 0 )

                {

                

                    retExt = checkFailed( "@TEST:Thelineamountcannotbezero" + " for Item " + purchLineExt.ItemId );

                    

                }

                   }

            }

        

        return retExt;

    }

}