How to turn off the Out of Stock indicator

Inventory tracking is done separately for each product.

To manually turn off inventory tracking for an individual product:
- Login as Site Administrator.
 Edit the product.
- In the Description section, uncheck the box for 'Requires stock control'.
- Click Save Changes.

Instead of changing every product individually, use Import Products (Advanced) to change them in bulk:
Add a column called ‘Requires stock control’ to your Excel import files.
- Enter ‘false’ for every product.
- When you import, <ignore> all non-required fields except this one.