Hi,
We have EP on 7.3 integrated with SRM & SPM.
Users from different countries access EP via different URL's like: http://abc.com.us, abc.com.af etc....
where af stands for Africa, us for Unites States etc...
SPM has different custom iViews for different countries (since each country recognize only abc.com.<country name> in its DNS).
This is mapped to the web dispatcher's public IP on every country's DNS.
In short, there is no "common" name on the different DNS's.
SPM works perfectly Ok.
The issue is with SRM.
SRM does not have custom iViews like SPM.
SRM reads the ITS hostname from the system object & builds its own URL's for Strategic Sourcing etc...& we can have just one name in the system object....like abc.com.ag.
Since that one name won't be recognized in the different countries, SSO for SRM links doesn't work 
((
Adding a "common" system object name to all the worldwide DNS servers is a complete no no...so is adding local host file entries to users' PC's...
Having been tearing my hair big time on how to get this resolved...please do help advise 
Even the most remote suggestion would be super welcome.....
Thanks a lot !
saba.