1. How the cache notifications are sent to the backend ABAP?
2. What is the role of INTEGRATION_DIRECTORY_HMI ( /dir/CacheRefresh )?
3. If I need to require cache notifications to be sent from PI (ABAP 7.1) to ECC (ABAP 7.0), do i need to have INTEGRATION_DIRECTORY_HMI in ECC?
Thanks and regards,