Hi Facu:
I hope you are fine.
Please, explain how you have done this integration and send the Wazuh config for this.
If this is an integration done with the Wazuh integration module, you may have some logs in "/var/ossec/logs/integrations.log" and/or in "/var/ossec/logs/ossec.log"
You may need to set the DEBUG mode for the Integration module to see more details:
# vi /var/ossec/etc/local_internal_options.conf
...
integrator.debug=2
# systemctl restart wazuh-manager
I hope this helps.
Thanks