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ABAP client-to-server proxy through XI in same system


I have one XI system (NW70 SPS16) and 2 clients: 400 which is configured as Integration server and 500 which is application system.

In repository there are 2 messages interfaces, and in SPROXY of clnt 500 two classes are generated.

Is it possible to call server proxy from client one in XI system through XI Integration Engine? I tried it, but failed on receiver side (server proxy class). Here the message:

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

- <!-- Call Adapter


- <SAP:Error xmlns:SAP="" xmlns:SOAP="" SOAP:mustUnderstand="">



<SAP:P1 />

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText />

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack>Unable to read user password from communication channel of type Error when accessing the secure store (access ID = DD8C8D14F0C07AF1B67B003048343629) Error while reading from the secure store: ERROR_UNKNOWN: Cannot find entry in secure store (SECSTORE,023)</SAP:Stack>



Any sapnotes which described this error aren't helped, because they are outdated or mismatch my version.

So is it possible to use abap server proxy on XI side?

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