Prevent Creating Groups By Member Type.

yzc_limit_creating_groups_by_member_type.php

<?php
/**
 * Prevent Creating Groups By Member Type.
 */
function yzc_limit_creating_groups_by_member_type( $can_create ) {
    
    // Get User Member Type
    $member_type = bp_get_member_type( bp_loggedin_user_id() );
    
    if ( $member_type == 'customer' ) {
        return false;
    }

    return $can_create;

}

add_filter( 'bp_user_can_create_groups', 'yzc_limit_creating_groups_by_member_type' );