You cannot make any changes to a domain name when it’s actively in the transfer process.  

This means you’re unable to: 

• Update nameservers. 
• Change the WHOIS registration information.  
• Renew the domain registration.  

If you must make one of those edits, you’ll need to contact the originating registrar with a request to cancel the transfer. Otherwise, you’ll need to wait the standard 5-7 business days for the process to finish so you can make your edits.