Hi Dolly,
As per my understanding, you need to include these field " Promo ID, Material, Week, U.vol " into existing cube. So, you should need to how to proceed next step.
Please find my suggestion:
1) First gather User requirement clearly.
2) Understand the functionality of report.
3) Check with end user / any , report requirement.
4) Generate impact analysis.
5) Check with functional consultant your requirement clear.
6) Develop your requirement and check with Team lead or your collique . Get feedback from them.
7) Once TL tell ok, send that Dev box your development to client
8) Once client satisfy do the same in production system
\
Regards,
Baskaran.
