One time sales (Golden Rainbow)

one of my enterprise corps has a lot of unsold product
I take 1 months worth off the market
I make a 1 time sales offer to my country
by the time I get to my country a couple hours later ( I fell asleep ) and try to accept the offer "Sorry, the corporation offered you more products than it currently has in stock! "

how do you avoid this? I certainly don't want to reserve product every month for a one time sale

Let it sell on the world market instead of buying it.

"some left" is what to aim for with your product and its sale stratgy.

As me ole Grampa used to say:

"You snooze... you lose"