hi - I've setup a different password for a group of subdomains but it doesn't seem to be working for the IP Update request.
is there anything I need to add to the string?

The IP Update password still works, but the group password does not.
Both passwords are sent as SHA256


Thanks,
Walter

Are you using the below update query:

api.dynu.com/nic/update?username=USERNAME&password=GROUPPASSWORD&group=GROUP