update value at another sheet

Is there a way to restrict so the ADD to Inventory action button, and REMOVE from Inventory action button will only run once?
I notice a message when trying to execute the ADD to inventory twice, but had no problem executing the REMOVE from inventory several times.

How can it be restricted to just one time?


The reverse action button (to remove inventory) can be clicked several times, but will only work the first time to remove the last completed action (last adding of the inventory).