Unable to convert the sender service to an ALE logical System

We are sending an IDOC from SAP 47 to SQL Databse thro XI03 using DEBMAS05 IDoc type.

47 > IDOC Adapter > Xi JDBC Adapter > SQL databse table

We are generating an external number for Customer in SQL adn retireving it back thro the same route and sending it to 47 again.

SQL data base update as well as retireval are all successful. But IDoc is not returning back to r/3 and fails with the message Unable to convert the sender service to an ALE logical in SXMB_MONI.

We applied all the suggestions as laid out in previous messages here at SDN forums. But it did not help us.

Following are the error details:

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

- <!-- Call Adapter

-->

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

<SAP:Category>XIAdapter</SAP:Category>

<SAP:Code area="IDOC_ADAPTER">ATTRIBUTE_INV_SND_SERV</SAP:Code>

<SAP:P1 />

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText />

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack>Unable to convert the sender service to an ALE logical system</SAP:Stack>

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

</SAP:Error>

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

- <!-- Call Adapter

-->

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

- <SOAP:Header>

- http://sap.com/xi/XI/Message/30" xmlns:SOAP=" http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsu=" http://www.docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" versionMajor="003" versionMinor="000" SOAP:mustUnderstand="1" wsu:Id="wsuid-main-92ABE13F5C59AB7FE10000000A1551F7">

<SAP:MessageClass>ApplicationMessage</SAP:MessageClass>

<SAP:ProcessingMode>asynchronous</SAP:ProcessingMode>

<SAP:MessageId>F38AE720-851E-11D9-C539-00C09F450580</SAP:MessageId>

<SAP:TimeSent>2005-02-22T22:13:16Z</SAP:TimeSent>

- <SAP:Sender>

<SAP:Service>MIRAGE_DB_Receiver</SAP:Service>

<SAP:Interface namespace="http://Cust47ides/Scenario">DATABASE_REV</SAP:Interface>

</SAP:Sender>

- <SAP:Receiver>

<SAP:Party agency="" scheme="" />

<SAP:Service>BSSAP47812</SAP:Service>

<SAP:Interface namespace="urn:sap-com:document:sap:idoc:messages">DEBMAS.DEBMAS05</SAP:Interface>

</SAP:Receiver>

<SAP:Interface namespace="urn:sap-com:document:sap:idoc:messages">DEBMAS.DEBMAS05</SAP:Interface>

</SAP:Main>

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

<SAP:QualityOfService>ExactlyOnce</SAP:QualityOfService>

</SAP:ReliableMessaging>

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

<SAP:Category>XIAdapter</SAP:Category>

<SAP:Code area="IDOC_ADAPTER">ATTRIBUTE_INV_SND_SERV</SAP:Code>

<SAP:P1 />

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText />

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack>Unable to convert the sender service to an ALE logical system</SAP:Stack>

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

</SAP:Error>

Please help.

Thanks,

Bhaskar