private void CreateExpectedShipment(string supplier, string product, UInt16 quantity)
{
using (var clientContext = spContext.CreateUserClientContextForSPHost())
{
List expectedShipmentsList = clientContext.Web.Lists.GetByTitle("Expected Shipments");
ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
ListItem newItem = expectedShipmentsList.AddItem(itemCreateInfo);
newItem["Title"] = product;
newItem["Supplier"] = supplier;
newItem["Quantity"] = quantity;
newItem.Update();
clientContext.ExecuteQuery();
}
}