ICM_HTTP_CONNECTION_BROKEN
mediumHTTP Connection to ICM Was Dropped or Reset
Module: BASIS / ICM
What this means
ICM_HTTP_CONNECTION_BROKEN occurs when the Internet Communication Manager (ICM) detects that an HTTP or HTTPS connection was interrupted before the request could be completed. This is typically a client-side or network issue: the browser or HTTP client closed the connection before the server response was sent (e.g., user clicked Stop or navigated away); a network proxy or load balancer terminated the connection due to a timeout; the ICM work thread was processing a slow request when a keepalive timeout expired; or a Fiori/UI5 application sent a request that the ICM could not route.
Check SMICM for active ICM connections and error entries. Review SM21 for ICM-related messages at the time of the failure. If this is systematic, check proxy or load balancer timeout settings — these often need to be aligned with ICM's rdisp/max_wprun_time. For Fiori apps, check that the OData service handler is responding within the configured timeout.
Quick Info
Related Errors
ICM_HTTP_TIMEOUT→