There is no problem setting up two-step authentication on a Google Apps for Business account. The process is actually quite straightforward. First, you need to log into the Google Admin console. From there, go to the Security section and choose “Set up two-step verification.” From there, you will be presented with a set of instructions on how to set up two-step verification on your account. On the two-step verification page, it will provide you with the option to set up a backup phone number that can be used to receive codes if you ever lose or cannot access your main devices. You can also inactivate two-step verification entirely in case you no longer need it or want to switch to another type of security. If you have any issues with the process, simply drop a line at the support center and they will be more than happy to help you with the setup.