Acumatica base Email code

gistfile1.txt

public PXAction<SOOrder> emailSalesOrder;
[PXButton(CommitChanges = true), PXUIField(DisplayName = "Email Sales Order", MapEnableRights = PXCacheRights.Select)]
public virtual IEnumerable EmailSalesOrder(
    PXAdapter adapter,
    [PXString] string notificationCD = null) => Notification(adapter, notificationCD ?? "SALES ORDER");

public PXAction<SOOrder> emailQuote;
[PXButton(CommitChanges = true), PXUIField(DisplayName = "Email Quote", MapEnableRights = PXCacheRights.Select)]
public virtual IEnumerable EmailQuote(
    PXAdapter adapter,
    [PXString] string notificationCD = null) => Notification(adapter, notificationCD ?? "QUOTE");
      
public PXAction<SOOrder> notification;
[PXUIField(DisplayName = "Notifications", Visible = false)]
[PXButton(ImageKey = PX.Web.UI.Sprite.Main.DataEntryF)]
protected virtual IEnumerable Notification(PXAdapter adapter, [PXString] string notificationCD)
{
	bool massProcess = adapter.MassProcess;
    	var orders = adapter.Get<SOOrder>().ToArray();

    	PXLongOperation.StartOperation(this, () =>
    	{
      		var soEntry = Lazy.By(() => PXGraph.CreateInstance<SOOrderEntry>());
      		bool anyfailed = false;

		    foreach (SOOrder order in orders)
		    {
        		if (massProcess) PXProcessing<SOOrder>.SetCurrentItem(order);

        		try
        		{
          			var parameters = new Dictionary<string, string>
	  			    {
					    [nameof(SOOrder) + "." + nameof(SOOrder.OrderType)] = order.OrderType,
					    [nameof(SOOrder) + "." + nameof(SOOrder.OrderNbr)] = order.OrderNbr,
	  			    };

				    soEntry.Value.Document.Current = order;
				    soEntry.Value.Activity.SendNotification(ARNotificationSource.Customer, notificationCD, order.BranchID, parameters);
				    soEntry.Value.Document.Update(order); // to apply field assignments made to an order

				    if (massProcess) PXProcessing<SOOrder>.SetProcessed();
			    }
			    catch (Exception exception) when (massProcess)
			    {
				    PXProcessing<SOOrder>.SetError(exception);
				    anyfailed = true;
		        }
	        }

		    if (soEntry.Value.Document.Cache.IsDirty)
		    soEntry.Value.Save.Press();

		    if (anyfailed)
		        throw new PXOperationCompletedWithErrorException(ErrorMessages.SeveralItemsFailed);
	    });

        return orders;
}