update cube data

Hi,

We have a cube where there are incorrect values loaded in one of the columns. As this is history cube which contains weekly snapshots of the historical view, it can not be reloaded. So we need to find a way to update the value in this column to make it corret. Can some one share the easiest way to do so? I am thinking about writing an abap program not sure if the fact tale is the only table will be updated? Please advise.

Thanks,

Sharon