Hi Laura
As long as you are entering the count into the physical inventory worksheet that was created at the same time you went out and counted inventory, then it doesn't matter whether you post the adjustment batch first.
In fact, there is no reason to hold off posting inventory activity while you are waiting to enter the count. Adagio is smart enough to compare the count against the quantity on hand at the moment the physical inventory worksheet was created, not against the current quantity on hand.
Hope this makes sense.
Steve