Certificate Error in SAP PI 7.1

Hi All,

We are connecting a PI system with another PI system using MLS as well as SSL certificates.

While sending Idoc messages from ECC to PI system, we are facing the below error.Please help on this.

All configurations related to SSL and MLS is done

SSL - Certificates were injected in Strust and made SSL active in HTTP connection.

MLS - MLS certificates were added in keystore in NWA, Lpconfig in Abap stack for MLS is also done.

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

- <!-- Call Adapter

-->

- <SAP:Error SOAP:mustUnderstand="1" xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/">

<SAP:Category>XIServer</SAP:Category>

<SAP:Code area="SECURITY">SECURITY_APPLY_ERROR</SAP:Code>

<SAP:P1>Sign and Encrypt Message</SAP:P1>

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText>Communication error SRT: Empty SOAP Message received</SAP:AdditionalText>

<SAP:Stack>Error during message security handling in outbound channel: Security profile &#39;Sign and Encrypt Message&#39;</SAP:Stack>

<SAP:Retry>M</SAP:Retry>

</SAP:Error>

Please help on the above .

Regards,

Tibin Joseph