Dump when calling BSP application from External Alias

Hi Experts,

I need to call a standard BSP application(CRM_UI_START) from another BSP. I want to awoid the logon screen when calling the second BSP. I can't just set logon info on CRM_UI_START, so I created an external alias and set the logon info on this instead. This however results in a dump. (Message Type Unknown)

Any ideas?

Thanks,

Martin