Users can migrate exchange 2013 to 2019 through the EAC. Follow the mentioned below procedures to conduct a migration:

The user should open the Exchange Admin Center and then go to the Recipient and Migration.
After that, select the New + sign and move to a different database.
On the following page, you can select the number of users who are looking to move.
Now click on the add button.
After that, add the required mailboxes which you need to migrate. After clicking on the Ok button, click next.
Mention the name of the migration batch on the move configuration page.
Now click on the browse and mention the mailbox name on which the system mailbox has been migrated.
After clicking the Ok button, click on the Next button.
Now click on the start batch file button and then click on the finish button to close the migration.

To know more about how to migrate from Google to Office 365 or Cloud PC visit O365CloudExperts.