Exchange Online mail-enabled distribution groups can be assigned directly or indirectly to mailboxes, mail users, and mail contacts.
In the case of indirect assignment, employees and mail-enabled distribution groups are assigned to hierarchical roles, such as departments, cost centers, locations, or business roles. The mail-enabled distribution groups assigned to an employee are calculated from the position in the hierarchy and the direction of inheritance.
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If you add an employee in roles and the employee has a mailbox, the mailbox is added to the mail-enabled distribution groups.
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If you add an employee to roles and that employee has a mail user, the mail user is added to the mail-enabled distribution groups.
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If you add an employee to roles and that employee has a mail contact, the mail contact is added to the mail-enabled distribution groups.
 
Furthermore, Exchange Online mail-enabled distribution groups can be requested in the Web Portal. To do this, add employees to a shop as customers. All Exchange Online mail-enabled distribution groups that are assigned to this shop as products can be requested by the customers. Requested Exchange Online mail-enabled distribution groups are assigned to the employees after approval is granted.
Through system roles, Exchange Online mail-enabled distribution groups can be grouped together and assigned to employees and workdesks as a package. You can create system roles that contain only Exchange Online mail-enabled distribution groups. You can also group any number of company resources into a system role.
To react quickly to special requests, you can assign Exchange Online mail-enabled distribution groups directly to mailboxes, mail users, and mail contacts.
For more information see the following guides:
| 
 Topic  | 
 Guide  | 
|---|---|
| 
 Basic principles for assigning and inheriting company resources  | 
 One Identity Manager Identity Management Base Module Administration Guide One Identity Manager Business Roles Administration Guide  | 
| 
 Assigning company resources through IT Shop requests  | 
 One Identity Manager IT Shop Administration Guide  | 
| 
 System roles  | 
 One Identity Manager System Roles Administration Guide  | 
Detailed information about this topic
- Prerequisites for indirect assignment of Exchange Online mail-enabled distribution groups
 - Assigning Exchange Online mail-enabled distribution groups to departments, cost centers, and locations
 - Assigning Exchange Online mail-enabled distribution groups to business roles
 - Adding Exchange Online mail-enabled distribution groups to system roles
 - Assigning Exchange Online mail-enabled distribution groups to the IT Shop
 - Assigning Exchange Online recipients to Exchange Online mail-enabled distribution groups
 - Assigning Exchange Online mail-enabled distribution groups directly to Exchange Online mailboxes
 - Assigning Exchange Online mail-enabled distribution groups directly to Exchange Online mail users
 - Assigning Exchange Online mail-enabled distribution groups directly to Exchange Online mail contacts