These settings affect whether or not products can be bought from your Web catalog and what the requirements for your customers' orders should be. The first three settings have to do with store-wide ordering restrictions, which allow you to use your store as an online catalog instead of an online store. For example, if you select Only wholesale customers, retail customers will be able to browse the catalog, but not place orders (“Buy” or “Add to Cart” buttons won't be displayed).
The following settings define requirements that an order has to meet for the store to process it. In all four cases, customers whose shopping cart contents don’t meet one or more of these criteria are notified of the problem during the check out process.
Allow users to nickname their orders
When this feature is active, your store will allow customers to nickname an order during the checkout process. Customers can also name an order, or edit an order's name, when viewing information about a previous order from their account area.
This feature is useful for stores where customers tend to repeat similar orders over time and want to be able to quickly locate a previous order to create a new, similar one.
The input field where customers can enter a name for their order is shown on the billing/shipping address page of the checkout process (pc/login.asp), towards the bottom of the page, above the Order Comments area.
Allow separate shipments
This feature only applies to store that make back-ordered products available for sale. If you allow customers to purchase products that are back-ordered, there might be cases in which they order a combination of products that can be shipped immediately and products that cannot be shipped right away because they are back-ordered. In this scenario, you can allow your customers to tell you whether they would like to receive one shipment (they would wait until all products are available) or multiple shipments (products that can be shipped are shipped immediately). More information on managing this kind of order.
Note that it is up to you to decide whether additional shipping charges should occur in case the customer opts to receive the packages in multiple shipments. You can use the Edit Order feature to increase the shipping charges, if you wish to do so. You should provide your customers with details on your shipping policy in a “Customer Service” area of your store, which you could manage directly with ProductCart using the Content Pages feature.
You can notify customers that they are purchasing products that might be shipped in separate shipments by setting that option on the “Shipping Settings” page.
Allow customers to purchase out of stock items
Use this setting to allow or disallow the purchase of out-of-stock products store-wide. If inventory is an issue on your store, you will typically disallow the purchase of out of stock items using this setting.
On a product by product basis, you can then override this setting so that specific products can be purchased even if they are out of stock. Again, remember that if you set this setting to Yes, then any product-specific setting that is related to inventory is not taken into account. So set this setting to No whenever you need to keep track of inventory, even if only on a few products.