Issue Online Adjustment on Item Card
Solution

This field works in conjunction to Automatic Cost Adjustment on Inventory Setup. E.g. I have selected weekly here and i post a Purchase Doc on 010109 this will set to false as nothing has to be adjusted. But post a Item charge within a week of 010109 it will set itself as true, so it states everytime any forced revaluation is done with in the period falling in ur Inventory posting setup, it becomes ready to adjust again.