Hi ,
I assume you might have gone through the all the links on this already .
configurable material ca'nt be attached to main... | SCN
My 2 cents on it is,
a) In component tabs we attach the sub parts required to repair the end unit , Now it is difficult to design a system where sub parts themselves can be configurable as then we will have to design a configuration screen for each Sub part to choose the final configuration which should be used.Because we do not till what level this hierarchy will be required .
b) We have the option of having End unit configurable, and the End unit is configurable because of the fact that sub parts are different .Now if we keep the sub parts Configurable then it is recursive loop which will not allow us to know what is the final product and we will end up delivering a configured product.This will also go against the concept of Service Product and we might have to design the steps to have multiple Service Product .
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However despite of my two thoughts I honestly do not know why exactly SAP has not provided this options and what are the implications of it if they would have given an option to add configurable material and option to choose the correct configuration from the component screen.
It will certainly help if someone from SAP EAM development team can throw details here .
Anjan