Not sure if it belongs here, but most probably here are the people who know best.

Even though IATA eliminate the ISI rule on tickets, I ran accross a ticket in Z class that had a SITI rule.

Background, I have to fly IAD - EZE. Family is in JNB ... so naturally the logical way to fly is IAD-FRA-JNB-GRU-EZE-GRU-JNB-FRA-IAD .... why you ask... well
C on UA IAD-EZE is roughly 8000, C on LH to JNB is roughly 6000. Add on with SA/RG from JNB-EZE (via GRU) in business 1900 in Z (rest. C) 2200 in c (less res. C) and 3900 in J (full flexible C). However, Z and C are with a SITI rule except for South Africa, Brazil and Argentina (menaing these are supposed to be sold on only in those countries. ...

the normal solution is to have LH ticketed in IAD, and get the SA ticket in JNB... but this would completley freak out our accountatns who already have a fit about hte routing (I pay the fare difference myslef if there is one).

Considering the IATA changes to eliminate the ISI (SITO/SOTO etc) indication on tickets and replacing them with the MCO. (even the COM is eliminated) what could do and what is the risk of a SOTO ticket?

I am still trying to have it at least SITO (which might be according to the rules).

Any thoughts ?