Users and groups detection in wazuh inventory data

[maram jlassi]

i want groups and users to be displayed in the inventory data section for each agent, i've tried  to add these two lines 

<groups>yes</groups> 

<users>yes</users>  

in the syscollector section (ossec.conf file)

<wodle name="syscollector">
    <disabled>no</disabled>
    <interval>1h</interval>
    <scan_on_start>yes</scan_on_start>
    <hardware>yes</hardware>
    <os>yes</os>
    <network>yes</network>
    <packages>yes</packages>
    <os>yes</os>
    <network>yes</network>
    <packages>yes</packages>
    <ports all="no">yes</ports>
    <processes>yes</processes>

    <!-- Database synchronization settings -->
    <synchronization>
      <max_eps>10</max_eps>
    </synchronization>

  </wodle>  

but that showed the error : " Error: Could not update configuration (1908) - Error validating configuration: No such tag 'groups' at module 'syscollector'., (1202): Configuration error at 'etc/ossec.conf'."

is there a specifique config to add before this step ? 

Thanks in advance.