So if I click pause for 2 min while 24 items in stock will it check said 24 items for something in my ab list first or does it pause without checking once 24 items are present?
I am pretty sure it will just pause once it reaches the number of items you have specified.
However, I could be wrong, @Infamous Joe could most likely shed some light on this.
You could always test it yourself.
Like go to a pretty empty shop, count how many items are there, set the number to pause at 1 less than is currently in the shop.
Make sure you have at least one item in the shop, in your list.
Then buy one item to make the amount in the shop the number you specified.
If it buys something, or just pauses it should answer your question.