Registration and login
Access to Climatix IC is a two-step procedure:
- First-time access to the login procedure for Climatix IC determines the login workflow.
- The following logins to Climatix IC provide fast, simple, and secure access to Climatix IC using the previously determined login procedure.

You must register to log into Climatix IC. See section 'Register'
The login authentication for Climatix IC is performed by the authentication service of the identity provider and not by Climatix IC.
The Microsoft service Azure AD B2C creates an account for the default login (as a replacement for the former Climatix IC login). The user logs in as usual with the user name and password.
Climatix IC supports the following external login providers:
- Microsoft Private Accounts
- Google Private Accounts
- Siemens ID (not for Siemens employees using other Siemens apps)
- Siemens employee (Siemens employees only, via Microsoft Entra ID)

Multi-factor authentication MFA↑ must be set up and enabled at the appropriate login provider as needed. Consult the documentation from the applicable login provider on how to set up MFA.
Access control to Climatix IC via Microsoft Azure AD B2C
The external login providers listed above bundle the access information to Climatix IC in one authentication service: Microsoft Azure AD B2C. The authentication service saves and manages access data to Climatix IC.
Important note:
- The Climatix IC account and external provider login are in a 1:n relationship.
- The user can select and automatically link to an identity provider at any time.
- Users of API accounts or third-party apps, created based on Climatix IC APIs, must use the default login. MFA↑ is not required in this case.
- The e-mail address used for the external login provider and the Climatix IC account must be the same.
- You cannot use one e-mail address for an external login provider, such as Microsoft, and then use the service to log in to an account under a different e-mail address on Climatix IC.

New as of D25: Access data is no longer managed internally in Climatix IC as of the introduction of Azure AD B2C. Existing menus to manage and edit access information, such as linking a Climatix IC account to an external login provider, have been switched off.
Existing accounts are automatically switched to the new login procedure during first-time login.