This article concerns https://hbr.org/
Access Codes for Company Subscriptions
An access code is a code/variable string (may contain letters and/or numbers) purchased by an organization which allows their users to register on HBR.org and gain HBR Subscriber access. If you have an access code, go to to http://hbr.org/accesscode-registration and enter your email address and the access code you were given in the Access Code field. You must already have your access code; Customer Support cannot provide it.
On the resulting page enter your First Name, Last Name, Email Address and create a Password. Once the fields are filled in, click 'Validate'
After clicking 'Validate' you will be taken a thank you page where you can select topics on which to receive emails (newsletters) or click on the HBR logo in the upper left and be taken to the homepage.
Be aware access code subscriptions do not include access to the digital version through the iPad or Android apps.