ProductCart automatically keeps inventory levels updated for you. When you add a new product to your product catalog, you have the ability to specify the initial inventory level. As orders are submitted for a particular product, the inventory level for that product is adjusted accordingly.
Since you may receive new shipments of products, or produce new products, etc. you need to be able to change the inventory settings at any time. You can update the inventory levels:
When you use this feature, you will be shown a list of all products in your product catalog and their inventory level. You can sort products by SKU, product name or inventory level using the small arrows located next to the column name. You can also Show Back-Ordered Items only and Show Out-of-Stock Items only using the corresponding check boxes.
To adjust the value in the Inventory Level column, use the Add Units field. Enter a positive number to add units to the current inventory level. Enter a negative number to decrease the current inventory level. Make sure to check the check button next to the products for which you have entered values, and then click on the Update button to apply the change.
If you wish to change the inventory level on multiple products by the same amount, select the products to which the change will apply, enter a positive or negative amount at the bottom of the page, and then click on the Update button. Click on the Check All link to select all products that appear on the page.
Now, let’s look at how the inventory settings located in the Store Settings page affect the way ProductCart deals with inventory.
For example: if the stock level for a certain pair of shoes were 25 and the customer were to add 26 units to the shopping cart, a message would be displayed indicating that the ordered amount exceeds current inventory levels. If the customer were to add 20 units to the shopping cart, no message would be displayed. However, if the same customer were to add 6 units to the order by editing the quantity field on the shopping cart and recalculating the shopping cart total, ProductCart would then display a message indicating that the maximum number of units that can be purchased for that pair of shoes is 25.
These and virtually all other text messages dynamically displayed by ProductCart can be easily edited by following the directions outlined in Editing Text in your Storefront.
Note that if you are using product options, ProductCart will not treat each product variation as a separate inventory item. However, there is a ProductCart Add-on, called the Apparel Add-on, that provides this and other features for advanced inventory tracking on product options.