Domain name transfer in is the transfer of a domain name from a registrar to this site.
After transferring to submit successfully, need 7 days or so to be able to transfer successfully generally.
Domain name transfer out is the transfer of the domain name from the site to another registrar.
After submitting the transfer code, the transfer code will be sent to your account email by email. (Some domain api will send the transfer code directly to the domain name registrant's email address)
Domain push is to transfer a domain name from one account on the site to another.
Please confirm the account before push to avoid transferring to error account.