| Method | AddInvoiceItemsToCart | 
| Method | AddItemsToCart Add multiple lines to a Cart by Item_ID, Stock Code or Alternative Part Number.Adds one or more items by Item_ID, Stock Code or Alternative Part Number to the shopping cart. Introduced in 2023.1  | 
| Method | AddItemToCart Adds an Item, by Item_ID, to the current shopping cart in a specified Quantity using the Unit of Measure.  | 
| Method | AddItemToCartByPartNumber Adds an Item, by Part Number, to the current shopping cart in a specified Quantity using the Preferred Unit of Measure. Introduced in v2.19.  | 
| Method | AddItemToCartByStockCode Adds an Item, by StockCode, to the current shopping cart in a specified Quantity using the Preferred Unit of Measure.  | 
| Method | AddOrderItemsToCart | 
| Method | ClearCart Clears all lines from the shopper's current cart. Introduced in v.2.21  | 
| Method | DeleteCartLine Deletes the specified cart line. Introduced in v2.21  | 
| Method | GetCart Gets the current cart and details of the shopper. Introduced in v2.21.  | 
| Method | GetCartItemCount Gets the count of total items in the cart equivalent to the sum of all quantities. Introduced in 2023.1  | 
| Method | GetCategoryShipDateRestrictions Gets any ship date restrictions from categories of items in the shopping cart. Introduced in 2023.1  | 
| Method | GetWarehouseToUse Gets the warehouse to use for an item in the shopping cart. Obsolete. Use Fulfillment.GetWarehouseToUse instead.  | 
| Method | RenameSavedCart Changes the name of the saved cart specified by the ID to the new name. Introduced in 2023.1  | 
| Method | RestoreSavedCart Restores the saved cart having the specified ID merging it to the active shopping cart. Introduced in 2023.1  | 
| Method | SaveCart Saves the current shopping cart with the specified name. Introduced in 2023.1  | 
| Method | UpdateCartLine Updates an existing line in a cart.Updates an existing line in the shopper's cart. Introduced in v2.21  |