On Demand Migration (ODM) does not migrate from a Google source, we recommend using On Demand Migration for Email (ODME) for migrations from a Google tenant.
From our Product web page for On Demand Migration for Email
Migrate Gmail to Office 365, or move between various other email platforms, with this secure SaaS solution. On Demand Migration for Email enables you to easily migrate user mailbox data from Gmail, Exchange, POP/IMAP, Sun ONE/iPlanet or Zimbra to Office 365, or on-premises or hosted Exchange without installing or maintaining migration software. This flexible product is primarily used as a Gmail migration tool, but whichever source and target you choose, you’ll be empowered to complete your project faster and easier than native software would allow.
Please contact your sales account manager or sales@quest.com for more information.