File to IDoc Error

Hi All,

I am doing Exchange data File to IDoc, every thing is fine. In sender it pick-up the file. In receiver system can't get.

I monitor the XML Message it gives the below Error

<b>Control record must start with tag EDI_DC40, not E1LFA1M</b>

any body help me what is the EDI_DC40. i found this is in message mapping time...