I can send OSO order in demo ,but Access denied in Replay

I see the topic:401-error-in-live-mode
It is that mean a device Id I just need kepp it unic,for example use MD5(“name” + “password” + “apiKey”+“cid”),and need approved this device id for use?
but I check my email ,It just has some notify about new device ,has no some email with link to approve device Id