There are 3 steps in this process:
1) Open account with Google Apps: https://gsuite.google.com/
2) Add all email accounts on Google Apps control panel
3) Switch MX records on our servers so mail would start going to Google Apps.
We can handle all 3 steps for you if you send the information below to email@example.com or open a support ticket:
- full company name, address and contact information
- list of all email addresses in use with person full name and the password to use for that account