Justinmade my product
added the size options
added the add to cart and view cart buttons
click the add to cart and get an error that says my cart it empty and the product is out of stock?
where can i put in inventory for each size shirt etc.?
Sounds like you did not create the variants properly. When you check "needs variants" box, on the next screen you can define options, their values, weight, stock and individual price.