Install and launch the SysInfo G Suite to Office 365 Migration Tool as an administrator.

Next, provide your G Suite login details such as the RootUser Email Address, Service Account Email, and the path to the p12 File. Tap the Sign In button.

Once you have successfully logged in to your G Suite Account, further choose user IDs from which you have to migrate data. You can either choose all or specific user IDs to migrate G Suite Data. Click Next.

Now, you can select various applications from Google Workspace, such as Gmail, Drive, Contacts, and Calendar. Choose to migrate data from either a specific application or all of them at once. Click Next.

If you have chosen Gmail along with other applications, the next interface appears as shown in the image.
Note: If you are not transferring the mailbox data, the tool directly asks you to log in to Office 365.

Now, select the Date Filter radio button to migrate only selective emails. Enter the Start and End dates in the designated fields to pick data within a specific date range for migration.

To prevent migration of duplicate data, tick the option “Skip Duplicate Emails on the Basis of”. Also, select the criteria to remove duplicate: From, Subject, and Body.

If you have previously migrated from the same G Suite Account to the same Office 365 account, choose the Skip Migration Previously feature. It will eliminate the migration of already migrated data.

While migrating Gmail Mailbox data, you can also choose folders you do not want to migrate to Office 365. From the given checklist, select the preferred folders and skip migration.

Next, opt for the following options:

• Migrate or Backup Email(s) without Attachments to exclude migration of attachment files while migrating the G Suite Emails.
• Custom Folder Name feature allows to specify a folder name of the user's choice to save the migrated data.

Click Next to proceed.

Now, you enter the login page of Office 365. To Log in with an Admin Account, you need to enter Azure Admin ID. Click Sign In.

If you choose Login with Single Account option, click on the Sign In button and the tool will redirect you to the Web Browser. Authenticate and log in to your Office 365 account

Before you click on Sign In, in the Mailbox Settings box select destination mailbox to save G Suite data.

Once logged in to your Office 365 admin account, select the user IDs where you want to import G Suite migrated data.

In the next panel, map the G Suite IDs to the Office 365 User IDs. The tool maps data from each user in G Suite to a corresponding user in Office 365(Admin Account) as per your choice. Click on Next.

Lastly, click on the Backup button to begin G Suite Migration to Office 365.