At this current time, only one master admin account can be created. This is for security measures. However, we have recently added the functionality to give authorization for a “sub-admin” when creating a Guest Access Code or E-Key. So when you are in the app, select Access, and then Access Codes, and then Guest access code and after choosing the validity period you will be able to select Permissions for that user and you can designate them as a Sub-Admin. Keep in mind that if you allow your Sub-Admin to give Offline Access Codes you will no longer be able to share or grant Offline Access Codes. Only 1 user at a time is able to grant Offline Access Codes. For more information on this process, please email us at help@lockly.com or call us at 1-669-500-8835.