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BW Business Explorer (SAP BEx)

How to correct the error messages about Reverse user mapping test occurring in Support Desk Tool

Purpose:

To correct the RED signal appearing in Support Desk Tool about Reverse user mapping test under section
'WebAS ABAP Settings'

Overview:

To correct the RED signal appearing in Support Desk Tool about Reverse user mapping test under section
'WebAS ABAP Settings'

Steps to be followed in this regard:

While running the Support Desk Tool as per SAP Note 937697, the following RED signal is seen in
Support Desk Tool under
section  'WebAS ABAP Settings':


RED  Reverse user mapping test by RSWR_RFC_SERVICE_TEST failed.J2EE user 'ABCDEF' was mapped to
ABAP user 'ABCDEF' which was mapped back to J2EE user 'ABCDEF called'


RED Reverse user mapping test by RSRD_MAP_TO_PORTAL_USERS failed.J2EE user 'ABCDEF' was mapped to
ABAP user 'ABCDEF' which was mapped back to J2EE user 'ABCDEF called'

This error message can occur because of the following reason:

This error means that a unique BW user is not used, when executing the Support Desk Tool (SDT) checks. Please

note that every BW ABAP <-> BW Java user needs to be a unique pair. In particular case one is using 
portal user ID "ABCDEF" ,  which also exists in
ABAP stack. As there is no explicit user mapping maintained in
user administration on J2EE side, this implicit user mapping
is used. This means, user "ABCDEF" executes

programs in ABAP stack as user "ABCDEF" too. But additionally to that if one maps portal user "ABCDEF called"
to ABAP user "ABCDEF". So when doing the check callback from ABAP -> Java the user ID suddenly changes
as the ABAP stack detects this explicit mapping. This is not allowed.
One can either use same user IDs or
unique user mapping.


And, this problem can occur if the User name used here is equal to or less than 5 characters.

To correct this RED signal appearing in Support Desk Tool, please check the following:


1)
Remove the mapping of user "ABCDEF called" in portal user administration and rerun Support Desk Tool
     afterwards. Click button "Reload Configuration" from Support Desk Tool and check whether the issue persists.


2) The User Name used should be greater than 5 characters.


3) Please note that the Connection Test in Transaction SM59 (RFC Connection) of BW Backend system should
    work properly.


4) Ensure that System Connection Tests in Portal is working properly by going to relevant Portal system ->

    System Administrator -> System Landscape -> Portal Content -> systems -> SAP_BW -> right click on
    Context  menu -> open -> Connection Tests


5) Please also check User Mapping. Please note that 1 User ID in Java should point to only 1 User ID in
    ABAP and vice versa and please note that 2 User IDs in ABAP should not point to same User ID in
    Java and 2 User IDs in Java should not points to same User ID in ABAP.