I have a scenario where an ECC system sends IDocs to PI 7.0 and then they route to SAP MDM (MDM Adapter). At times, we have had an issue where large idocs cause import issues at MDM. We have (and continue to) looked into it on the MDM side, but I would also like to be able to block files larger than a certain filesize at the PI Receiver Determination. I was thinking I could condition there and send smaller files on, but have larger files route elsewhere.
I see that I can use "Context Objects" in the receiver determination condition, and SourceFileSize is one of the options. Problem is, the conditions only have operators EQ, NE, ~ and EX. There is not a ">" or "<". The XPath Expression field in the window where you select Context Object is also always grayed out.