ABAP Proxy: Error calling Proxy

Hi guys,
Here I am with another amazing mistake.....
After searching the forum, reading some suggestions, notes, I'm a little bit lost on how to figure out what is wrong...
I've created a receiver ABAP Proxy. XI should call this proxy and receive the consequent response.....
I've tested the ABAP Proxy, everything is working fine...I've encountered some errors but was able to bypass them... But this one is getting hard...I've found one or two similar threads, or with the same error description but I had no luck in overcoming the error....
So, what is the problem....:
When XI is calling the ABAP Proxy I get:
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="INTERNAL">EXCHANGE_PROFILE_ACCESS</SAP:Code>
<SAP:Stack>Error while reading exchange profile for system DEV and client 100</SAP:Stack>
I've searched the exchange profile but everything seems ok...
The user has all (and more) the authorizations needed....
Can you guys give me some hints? Or suggest any attempt....?

Kumar,
as I said before, in SPROXY i can test the interface with no errors....
In the Application System the sldcheck returns no errors and the RFC Destinations return no errors on the connection tests...
I really can't understand what this problem might be...
Problem solved
What was it? Well, I'm really not sure...Like most of the threads related to this topic it's quite an awkward problem....I've tested some RFC connections which were created, changed some parameters, restarted the system and voila....
Thanks
Message was edited by:
Gonçalo Mouro Vaz

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