sth wrong with our BWBO SSO

I hope u can help me.This problem is a little complex.

Sorry,my English is just soso ,I hope u can understand my words.

we develop Dashboard reports only,and my customers request to watch different datas when they view the same report,it means if u are the CEO, u log on the BI portal,u can view all the data.but if u are the manager of a special area,u can only view the data belong to your area.

I use a BW account to build the OLAP connection from BW to BO and DASHBOARD reports,I give this account ALL- authority（ZROLE-ALL） in the bw.then I use a small authority account to view the report,but it comes out with the wrong messages,

This small authority account means I only give this account the authority that it can view its area's data.