Intercompany change when upgading to R12

   My company is currently going through the 11i to R12 upgrade process. We have 150 companies/potential trading partners. In order to upgrade it is our understanding that we either need to manually create 22,500 rules for these potential relationships (i.e. 150x150) or create a new intercompany segment in our flexfield string that will greatly reduce the overhead necessary to maintain these relationships. Fortunately we have a reserved free segment we call Future Use that is the same number of characters as our company segment. However, there are those in the company that do not want to "burn" this segment,