Update order.jsp view after adding items

Hello,

I'm required to change or delete some items on order.jsp (basket view). When I add the items I use something like

//When adding
salesDocument.addItem((ItemBaseData)item); //Item here is of type ItemSalesDoc
.
.
.
//When deleting
salesDocument.removeItem((ItemBaseData)item); //Item here is of type ItemSalesDoc

I implement this code on a custom action which I call after forwarding /b2b/basketrefresh and before /b2b/updatedocumentview

The problem is that when I add items, these items are not displayed in the item view.

The strange thing is that when I remove an item it is not displayed (which is the behaviour I expect) so I know that the correct version of the view is read .

Also I sometimes need to replace an item but using the

// altList is an ArrayList which contains product GUIDs to which I want a product to be replaced
salesDoc.replaceItemsByAlternativProduct(altList);

Any help will be greatly appreciated.