Cloud Kicks (CK) wants to use its existing single sign-on (SSO) Identity Provider with its...

This value is used to map the user’s identity from the externalidentity provider to the user record in Salesforce. The Federation ID must be unique for each user and must match the value of the SAML attribute that is sent by the identity provider during the SSO process. The Federation ID can also be used for JIT provisioning, which creates or updates users on the fly when they log in to the site.