No receiver agrement found

Hi Experts

We are implementing a SRM Interface SUS  Supplier Self Service .

The Flow of the message is from ECC->XI->SRM server.Sender id IDOC :ZCREMAS_SUSMM.CREMAS03 ,Receiver is Proxy SRM side.

we have completed the development in XI and when we are testing the interface in XI its successfully processed ,but in SRM SXMB_MONI if we check we are getting error like.."No receiver agreement found "..

Please guide us if we are missing anything ...

Thanks in advance..

Usharani.N