There are different times when you may need to sign in while using ArcGIS Pro. Signing in with a licensing portal is required to run ArcGIS Pro if you are licensed as a named user. Signing in to your organization also allows you to access your content, group content, and your organization's content in your project. You can sign in to additional portals to use their content as well. You must also sign in to publish and share with your organization.
You can sign in to your organization from either the Sign In menu 
at the top corner or by clicking the Project tab on the ribbon and clicking the Portals page. The Sign In menu only appears in the top corner if you have portal connections. Some portals may authorize your account in a different manner. If a dialog box or prompt appears, provide your credentials, and continue working with ArcGIS Pro.
Sign in to start ArcGIS Pro
If you are licensed as a named user, your licensing portal may require you to sign in when you start ArcGIS Pro.
- Start ArcGIS Pro.
- If a Sign In dialog box or prompt appears, provide the credentials associated with your account.
Note:
You are redirected to a browser when signing in to ArcGIS Online with GitHub, Facebook, Google, or Apple login credentials.
- If the option is available, you can choose to sign in to the portal automatically.
- Check Sign me in automatically to have ArcGIS Pro store your credentials and sign in to the portal automatically; this option is checked by default.
- Uncheck Sign me in automatically if you prefer to provide your credentials each time you start ArcGIS Pro.
- Click Sign In.
The Sign In menu at the top corner shows your account name and organization. If your organization uses the same portal to license the software and share content, you can start using that content in your project immediately. After a period of inactivity, you may be required to sign in again.
Sign in to access content from a portal
Depending on how you are licensed, you can start the application and work on a project with local data without signing in. If you have a portal connection, the Sign In menu at the top corner of the application is visible and indicates if you are not signed in. You must sign in if you require access to content on your organization's portal, for example, if you need to do any of the following:
- Create a project using a project template available on your organization's portal.
- Open a project shared on a portal as a project package.
- Add a map shared on a portal as a map package to your project.
- Add a web scene to your project.
- Add a web layer to your map.
- Click the Sign In menu at the top corner of ArcGIS Pro.
- If a Sign In dialog box or prompt appears, provide the credentials associated with your account.
Note:
You are redirected to a browser when signing in to ArcGIS Online with GitHub, Facebook, Google, or Apple login credentials.
- If the option is available, you can choose to sign in to the portal automatically.
- Check Sign me in automatically to have ArcGIS Pro store your credentials and sign in to the portal automatically; this option is checked by default.
- Uncheck Sign me in automatically if you prefer to provide your credentials each time you start ArcGIS Pro.
- Click Sign In.
When you have signed in, the Sign In menu shows your account name and organization. You can complete your task using content available from the organization's portal.
Sign in to an additional portal
You can use content from many portals. To access another portal's content, you must first add a connection to the portal. The first time you use it, you sign in when you add the portal connection. If you previously connected to the portal, make it the active portal and sign in, if necessary, to use the content it provides.
- Click the Sign In menu at the top corner of ArcGIS Pro.
- Click Switch Active Portal.
A list of existing portal connections appears.
- Click the portal you want to use.
- If a Sign In dialog box or prompt appears, provide the credentials associated with your account.
Note:
You are redirected to a browser when signing in to ArcGIS Online with GitHub, Facebook, Google, or Apple login credentials.
- If the option is available, you can choose to sign in to the portal automatically.
- Check Sign me in automatically to have ArcGIS Pro store your credentials and sign in to the portal automatically; this option is checked by default.
- Uncheck Sign me in automatically if you prefer to provide your credentials each time you start ArcGIS Pro.
- Click Sign In.
The Sign In menu changes to show your account name and organization for the active portal. You can complete your task using content available from this portal. The Portal tab in the Catalog pane provides access to its content.
Note:
Alternatively, you can sign in and switch the active portal by clicking the Project tab on the ribbon and clicking the Portals page. Right-click the portal you want to use and click Sign In or Set As Active Portal.