Hi ,

I am planning to migrate exchange server 2007 to 2013 , Its simple environment exchange 207 all role are in one box and 2013 too.

I jsut want to know if this URL missing something or need any precaution rather than mentioned here.

https://technet.microsoft.com/en-us/library/jj898581%28v=exchg.150%2

Please have a look on this article which will explain and go through all the steps to migrate from Exchange 2007 to Exchange 2013

You may also take help from Microsoft Exchange Server Deployment Assistant a web-based tool that asks you a few questions about your current environment and then generates a custom step-by-step checklist to accomplish this task. 

Moreover, If you wish to accomplish this migration task automatically, you may try this solution which lets you to migrate from exchange 2007 to exchange 2013 with real time coexistence and without any downtime.

hope it helps you!

• Edited by J Philip 20 hours 21 minutes ago