I am currently testing with a scenario <b>where a number of XML files are read by XI and their data is passed to R/3 via an RFC call. Each XML File contains one line item data.</b> I am using BPM to achieve this. The problem is: <b>If I test with a single line item data (single file), the scenario works fine and data is updated at the R/3 end. But if I try to put multiple files simultaneously, only one file's data is going into R/3</b>. What can be the problem? Is it something to do with serialization? I have tried using EOIO; but still the same problem persists. I see in SXMB_MONI that all the messages have chequered flag. I have tried debugging the RFC, but it does not work out for multiple calls. Anybody has any idea how this can be solved?