Adjusting inventory

Hello,

The situation I am trying to solve is this:

Material was purchased as a "non-stocked" item. Now the material that was left over from the original purchase is to be placed into stock.

In the past, the user has been adjusting the material into stock using transaction MI10 which I believe is incorrect as it is inflating the stock but not decreasing it from the original cost centre.

Could someone inform me as to the correct transactions to use when adjusting the inventory on?

thanks.