3353280 - File Adapter archives but does not process message

• The Process Integration (PI) or Process Orchestration (PO) File/FTP Sender Adapter puts file in Archive folder but no corresponding file is processed to target system. 
• There is no related message ID in the PI/PO monitors. 
• In the defaultTrace or via the XPI Inspector Example 50 trace, you can see a message "Empty document found - proceed without sending message".
• You may also see a trace entry similar to "successfully archived on FTP server".
• If Archiving option is not configured then it may just be a case of seeing the "Empty document found - proceed without sending message" entry in the traces.
• You would like to understand what this means. 

SAP NetWeaver 7.5

File Sender, FTP Sender, Target directory, not reaching target, no message found, polls, polling, source directory, folder , KBA , BC-XI-CON-FIL , File Adapter , Problem