How to assign different activities for CRM UI for two different users.

Hi,

I am new to CRM Web UI.

Our requirement is to assign different permitted activities for two users in CRM 2007 Web UI.

Lets say we have two users A and B.

I have to assign user A display rights for Business Role Utillity Sales (Account management -->Accounts) and change rights for (Service Location -->Profiles.)

User B should have change rights for Business Role Utillity Sales (Account management -->Accounts) and display rights for (Service Location -->Profiles.)

Thanks & Regards

Raj Kiran