Error while connecting SAP S/4 system using SAP BW Application Server Connector.

Hi Experts,

We are trying to estbalish connection between a SAP S/4 system and Power BI using SAP BW Application server connector. We have done all the required configuration. However, we are getting error below when trying to connect. We do not any log in S/4 end , so wondering if something is missing at Power BI desktop end. Please guide.

Thanks,

Girdhari