Prerequisite: Before your organization’s Azure AD users can use Chatbot from channels like MS-Teams. You will have to make sure the following things have been done,

• Users from the organization's Azure AD tenant must be inventoried into EmpowerID. You can find details about Azure AD inventory here /wiki/spaces/EAGV21/pages/2732326913. 
• Inventoried Azure AD accounts must be linked to an EmpowerID person object.
• EmpowerID person object should be assigned the “EmpowerID Chat Bot Access” management role. This Access bundle provides the access required for the EmpowerID Chat bot to function for you. You can find instructions to Add People to Management Role here. 

Any accounts not inventoried into EmpowerID or failing any requirements mentioned above will receive an error message "Sorry, authorization failed. Please contact your system administrator regarding your Teams account.” when they try to access the Chatbot.