Salesforce Fact #881 | Community user check using ContactId on User
We can make use of ContactId field in User object to identify if the current logged in user is a community user or not. The same can be used in LWC. Attached is the screenshot. Note: The ContactId field cannot be updated manually and while trying to do so, the below error is encountered: 'You can't create a contact for this user because the org doesn't have the necessary permissions. Contact Salesforce Customer Support for help.'