gistfile1.txt

  [PXProtectedAccess]
	public abstract class GPSOOrderEntryExt : PXGraphExtension<SOOrderEntry>
	{
        protected const string NotificationID = "FUTUREPO";

        public PXAction<SOOrder> ActionEmailSoToVendor;
        [PXUIField(DisplayName = "Email SO To Vendor")]
        [PXButton]
		    protected IEnumerable actionEmailSoToVendor(PXAdapter adapter) => Notification(adapter, NotificationID);

        [PXProtectedAccess]
        protected abstract IEnumerable Notification(PXAdapter adapter, [PXString] string notificationCD);
	}