BSP user verification problem.

hi,all

We are facing a bsp user verification problem:

We put the bsp page into a web dynpro iframe,and it is showing well. But after several tests using several users,Some problems are shown: when we use "USERA" to logon Portal,when we turn to the bsp page,it is shown like using "USERB".

I do think SSO has no problem. We are using BW Portal.

Something should be edited about the bsp application?

Best Regards,

delma