Automate copying and deletion of data

BW Gurus,

We have Actual and Previous year cube. When the Fiscal year about to finish, we slowly move all the actual data from actual cube to pevious year cube and then do seletive deletiion from actual year cube. I want an automatic process (process chain) to move data daily, weekly or monthly basis from actual cube to previous year cube and subsequently delete those from actual year cube.

Gurus please through your ideas to achieve this.

Cheers

Mithu