I have a root organisation in SRM 5.0.
I created some child organisations under it.
Some material groups are inherited from root organuisations to child organisation in external attributes of PPOMA_BBP.
Now i add some more material groups in external attributes manually to the child organisation.
When i replicate child organisation from R/3 those material groups gets washed.
Please give some pointers to solve this issue and material groups should not go when I replicate chid organisation from R/3 to SRM.