IPC:External Tax System: NO_ZONE_TREE_MATCH No Matching Zone Tree was found

Hi All,

I'm getting the below errer in CRM sales order.

"IPC:External Tax System: NO_ZONE_TREE_MATCH No Matching Zone Tree was found.  Address: SHIP_FROM"

Please give me some clue what could be the reason for the error..

Thanks in advance,

JM.