On the Complete the process page in Microsoft Office 365 Small Business, when you click Done, go check, you get the following error message:
Sorry, your DNS records are not updated yet
Make sure that the name server (NS) records are updated to point to two of the following:
To do this, click Back, and then follow the instructions on the screen to update the NS records. After you update the records, you may have to wait up to 72 hours to allow for the changes to propagate and take effect.
To check whether the NS records have propagated, follow these steps:
Start Command Prompt.
At a command prompt, type nslookup , and then press Enter.
Type Set type=ns , and then press Enter.
Type your domain name. The following example uses contoso.com as the domain to look up.