Frank,
Testing the new store out.
Question about Variants?  I'll post in forum also...
I’m trying to set up a product.. T-shirts.
Set up a variant for size and another for color. Sizes- S,M,L,XL,XXL and Color - Black and White

I goto the Inventory page for that sku and can see all the variants... There are 10.
Black S
Black M
Blcak L
Black XL
Black XXL
White S
White M
White L
White XL
White XXL

I randomly set the inventory for 2 of the choices and they updated properly.

Now when I goto the Main store page and find the sku the Variants show..
But you can order any combination of any of the variants.  Does the shop have functionality to remove per variant regarding stock orders?
Does this seem correct to you?

I tried to go to the demo site but it was down.  I'll be happy to set it up in the demo site when it is back up.

Thanks Frank,

I understand the steps to disable a variant. 

Does this mean that each time a sku with multiple variants is out of stock, you must go in and manually disable the variant so that It can't be ordered?

If the variant has inventory you can order it via the products page.... and if there is not inventroy, you can still order it on the products page.

Does this seem right??.... That would mean that each time you didn't want a user to order a sku variant that is out of stock, you would have to go into the sku's variant page and disable that particular variant.  (If your store had alot of products and variants you would spend alot of time doing this)

I would think that the out of stock variant could not bee "viewed" by users/purchasers on the  product page so that it couldn't be ordered?

Ok, now I understand you. Please follow Andyc's instructions.