Please read here, what could be possible cause.
http://wiki.scn.sap.com/wiki/display/ERPSCM/Material+document+shows+as+'Archived'+in+document+flow
Please read here, what could be possible cause.
http://wiki.scn.sap.com/wiki/display/ERPSCM/Material+document+shows+as+'Archived'+in+document+flow