Adding a New External Integration
For more information, see Managing External Integration.

CLM for Salesforce
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If you get any access-related prompts during this process, allow full access.
When you log in, the selected identity provider's external identifier auto-populates the External ID field.
It is a free-form text field. You can add types such as Dev, QA, UAT, Prod, and so on.
When the admin user creates new users, they are created with the default IdP. For example, if you have set Salesforce as the default IdP, all new users will be created with Salesforce IdP.
For more information, see Managing External Integration.