No receiver could be determined for ICO PI 7.3

Hi All,

I have created an ICO in PI 7.3. I have maintained necessary Integration engine configurations in ECC system SXMB_ADM to point to AAE .

This interface was working fine in Development but when we moved to QA, it is now throwing following error in PI abap stack.

I tried stopping the sender SOAP channel but still the message is coming in to the PI system and failing with following error:

<SAP:Codearea="RCVR_DETERMINATION">NO_RECEIVER_CASE_ASYNC</SAP:Code>

<SAP:Stack>No receiver could be determined </SAP:Stack>

I'm not sure why this coming into ABAP stack . Could you please help me if I'm missing anything.

Thanks