BRAND_EXCHANGE_ONLINE_SHORT% ActiveSync mailbox policies that you've defined in your on-premises organization aren't transferred ...

%BRAND_EXCHANGE_ONLINE_SHORT% ActiveSync mailbox policies that you've defined in your on-premises organization aren't transferred to your %BRAND_OFFICE_365_SHORT% organization. You must re-create your %BRAND_EXCHANGE_ONLINE_SHORT% ActiveSync mailbox policies in your %BRAND_OFFICE_365_SHORT% organization.