SAP Team calendar functionality in Room

Hi All,

I want to add team calendar functionality in a collabration room,and i have added SAP team calendar template in my room.

With this calendar ,we can create appointments, and so on.

But when i create appointment ,it shows below error:

<b>No logon data found for system exchange</b>

Basic settings for configuring calendar is properly done.

Do i need to do any user mapping for system exchange?

please tell in detail ,how it can be done.using EP6.0SP9

Thanks in Advance

Amit kumar koyal