Hosted Email 2007::ChangeUserPlanAssignment

This procedure changes the plan assigned to a user by specifying a new plan.

Note: This procedure is used to change the plan assigned to a user. When it is used to modify an user's mailbox size while the current mail store does not have sufficiently unallocated storage, it will find a new available mail store with sufficient space and update the tenant's organization allocation. However, this procedure does not actually move the user mailbox. Callers need to manually move the user mailbox to the new mail store using Exchange 2007 supported methods. Otherwise, the user mailbox will not be able to grow although new space is allocated for the user.

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