idoc with status - Error in Translation - 05

Hi Team,

I am trying to create Outbound idoc  using FM - MASTER_IDOC_DISTRIBUTE and then send a mail using FM -              SO_NEW_DOCUMENT_ATT_SEND_API1.

But i am getting failed idoc with status 05.When i comment logic for sending mail. Idoc is getting created successfully.

Please help me on this issue.

Thanks and Regards,

Shakeer Hussain