I am planning to migrate an email account from GoDaddy ( Product name Office 365 )

Happy to follow the migration steps as per the Zoho instructions.

I am wondering, however, how long the migration will take once I have taken all the steps? ( Only around 50 emails in account at the moment, and no large attachments )

I absolutely need to avoid losing any potential incoming emails. To help this, I plan to make the switch at night.

Is there a risk that potential problems will delay the switch for a few hours, potentially causing me to miss very important incoming communication?

If the risk exists, what can I do to reduce the risk?

Thank you very much!

Andrei