MDM Portal CUA Security

Hello Experts:

We have a scenario as below.

1) Enterprise portal witn windows NTML and using CUA for user base.

2) MDM 5.5 SP4 need to be integrated.

3) The R/3 is 620

1) How can we authenticate the portal/cua user in MDM

2) How can we create users in MDM automatically while creating in CUA.

Please help.

Please let me know for any more details, I can send.