Where did the missing milliseconds go in a Logic App execution?

Context While investigating the latency of an API, I noticed that different Azure services were reporting different execution times for the same request. The caller reported a total duration of 851ms, APIM reported 845ms, and Application Insights showed that APIM waited 837.6ms for the Logic App to respond. However, the Logic App runtime view appeared to show only about 400ms of execution time. The request flows through APIM to a Logic App (Consumption), which performs some in-memory processing before invoking an HTTP endpoint as part of the workflow. ...

July 13, 2026 · 6 min