First of all, you will see that a lot of fields in the Inventory tab have been defaulted to the configuration settings. This means that, by default, Magento will use the settings you made as the default value for these fields.
If it is more convenient for you to change the defaults, go to System | Configuration | CATALOG | Inventory. Since we did not discuss these default settings in Chapter 2, General Configuration, we'll do it here. Just remember that if you're changing the fields below very often, it might be easier to change the defaults for your situation.
To be able to change the contents of the fields on the item level, first deselect the Use Config Settings checkbox and then change the value of your field of choice.
The Manage Stock field is pretty clear: do you want to keep track of stock levels for this product, Yes or No? If you set it to No, a lot of other fields will disappear, because they are no longer relevant in that case. The Inventory...
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