Your user name is always your email address. But make sure you're using the right email address and that it matches the one in the system. It's not unknown for people to mistype their email address, either when logging in or setting up an account.
Use strong passwords or, better yet, a password manager like 1Password or LastPass. And don't share them with other people.
Your employer will enrol you on Turbine and you will get an email from the system with a link to activate your account.
No invitation email? Check your spam folder and make sure that any mail sent from @turbinehq.com will get through to your inbox in future. This is important as Turbine sends notifications, such as holiday approvals, via email.
In some cases it may be necessary to add Turbine to a corporate email system's whitelist of trusted senders too. Add the IP address 126.96.36.199, cdn.turbinehq.com and *.turbinehq.com to the whitelist.
If that doesn’t help, contact your Turbine account manager and ask them to resend the invitation and make sure they have your correct email address in the system.
The first time you log in, Turbine will ask you to create a password.
If you have logged in before and since forgotten your password, you can use the Password recovery option on the sign in screen to reset it.
This will send an email with a link that you can use to reset the password. This link can only be used once, so if you need to reset your password again for any reason, go through the password recover process from the beginning.
Here's how to find the login screen: your company will have its own dedicated page on Turbine, something like http://yourcompany.turbinehq.com, where ‘ yourcompany’ is the name of your company. Bookmark this page so you can get back there again in future.
However, if you forget that address, you can always login to Turbine from the main company website, https://turbinehq.com and clicking on Sign in in the top right corner of the screen.