Dynamic selective deletion of last working day in cube

Hi experts

I have studied this document:

http://scn.sap.com/community/data-warehousing/netweaver-bw/blog/2013/08/06/selective-deletion-in-process-chain

We need to delete each month at the 6th working day all records of the last working day of the previous month.

Thereafter we will have to reload the last working day of the previous month again.

This means there are 2 steps to do:

1. step:

create program as described in the link above; this z-program will be used in process chain variant.

2. step:

ABAP variable in infopackage which will reload the last working day of previous month.

Do you have the correct coding samples for both steps available?

Thanks.