Principal Propagation

Hi All

I am configuring PP(principal propagation) between the three systems using XI which is R\3->XI->R\3. The R\3 systems are the different.

For this configuration i have followed this blog

/people/alexander.bundschuh/blog/2007/01/16/principal-propagation-in-sap-xi

My PP is propagating the the expected user from R\3->XI. but not able to propagate the user from XI->R\3.

it gives the error "401 unauthorized" in the SXMB_MONI.

Please help.