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Check it after 9pm tonight. It was this way all day yesterday until after 9pm then I was able to check inventory.
 
It worked last night, it worked this morning, perhaps it turns off during business hours?
 
It's working for me, but I wouldn't trust yesterday's 'report' because the system updates the site at 9pm automatically(when Apple stores usually close) and since most Apple stores worked till 11-12 yesterday, it's a little inaccurate. Unless it updated again when they closed.
 
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