I have a requirement to transfer the entire SharePoint 2013 Farm on  Azure with Virtual Network, Cloud services, Storage accounts, Virtual Machines, Subnets and Availability sets to a different Subscription on Azure. I did some analysis and in this migration process i have learnt that the following Azure services (as of today 07/29/2014) can be transferred from one Azure subscription to another Azure subscription without data-loss and downtime, by raising a support ticket with Microsoft Azure Support :-

• Virtual Machines
• Cloud Services
• CDN
• Web sites
• Media Services
• Service Bus
• Storage
• Multi Factor Authentication
• Traffic Manager
• Mobile Services
• Virtual Network
• Access Control Service (ACS)
• Caching – we need to work with Engineering Team for migrating caching service
• Reserved IP Address and the Reserved IPs under the list

However, there are certain Azure services that cannot be moved from One subscription to another subscription (as of today 07/29/2014):-

a) Active Directory (AAD)
b) BizTalk Services
c) HD Insight
d) Backup 
e) Hyper-V Recovery Manager
f) Azure Store
g) Import / Export
h) Scheduler
i) Management Services 
j) SQL Reporting

The following pre-conditions should be met before initiating a subscription transfer with Microsoft Azure support :

• Source and destination subscription should be active
• Selective service transfer is not feasible as of today, it might come in future. It has to be all or nothing.
• The destination azure subscription should be empty, otherwise it will be overwritten during upgrade
• Source and destination subscription should have same server administrator assigned until the migration is complete.

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