Cannot Enable Customer Community User - No Chatter Answers User Licenses Available Error

When attempting to enable a Customer Community user on a Contact with a Standard or custom user profile, you may encounter the following error:

"No Chatter Answers User Licenses Available"

This error occurs because the Chatter Answers User checkbox is automatically checked when enabling a customer user with certain profiles. For example, a System Administrator enabling a new Customer Community user may find that — without manually unchecking it — the Chatter Answers User field is pre-selected, consuming a license that may not be available or needed. The Support team can disable this automatic function for your organization.

A related IdeaExchange thread can be found here.

Available Editions:

Professional, Enterprise, Unlimited, and Developer

Prerequisites:

Review your organization's Chatter Answers usage and license requirements before submitting an activation request. If your organization intends to use Chatter Answers, contact your Account Representative for assistance with obtaining the appropriate licenses.