How to migrate emails from Yahoo using the ShuttleCloud Migration Tool
The first step to migrate your emails from Yahoo is to either launch the app previously installed in your G Suite domain (see the following help article for details on how to launch the app) or by visiting: https://gsuite.shuttlecloud.com.
You will then be taken directly to the email migration screen pictured below. From here, as an administrator, you will be able to migrate messages from your Yahoo email account to any Google account. Note that this could be your G Suite Domain account, a user account within your G Suite Domain, or even a personal Gmail account.
In Step 1 you will be selecting the Supported Providers option and typing in the email address and password information of your Yahoo account.
Step 2 is very similar, except you will be selecting the destination account to which the emails are migrating into, this can be an account in your G Suite domain or a consumer @gmail.com email address.
Step 3 is simply adding the email address you want to be contacted once your migration has begun, as well as when your migration has completed.