To retrieve the transfer code of a current 1and1 domain, simply follow this procedure.
Access your 1&1 customer interface via the link https://my.ionos.fr/product-overview.
Once connected, click on Domains & SSL. You will find this section in the first square on the left.
To continue, you will have to click on the small wheel Action at the end of the line.
On the next screen, go to Transfer and renewal in the drop-down menu.
Once on this page, unlock the domain by clicking on the link unlock (you have to accept the warning message).
Then click on Show authorization code and a message appears.
Finally, you copy the authorization code at the bottom of this message and put it in your order to transfer your domain to the Magic Online portal.
It should be noted that it is impossible to perform this action if the domain name was registered less than 60 days ago.
Congratulations! You have successfully retrieved your 1and1 domain transfer code.