Set New User Role

/**

 * Set the role of users who register through the Charitable

 * registration form shortcode.

 *

 * @param   array $values

 * @return  array $values

 */

function ed_charitable_set_user_registration_role( $values ) {

    if ( array_key_exists( 'role', $values ) ) {

        return $values;

    }

    /** 

     * Replace 'campaign_creator' with the role you would like 

     * the users to have. Note that the role must be

     * registered already.

     *

     * @see https://codex.wordpress.org/Function_Reference/add_role

     *

     * The 'campaign_creator' role is available if you have

     * Charitable Ambassadors installed and activated.     

     */ 

    $values['role'] = 'campaign_creator';

    return $values;

}

add_filter( 'charitable_registration_values', 'ed_charitable_set_user_registration_role' );