What are the Pre requisites for BOM BOS

Hi Experts,

I need a help BOM BOS activity.....

1. How this 3 FM will work, i want BOS Exported substances only to EU.

2.    How this table will be updated ESTWL,

3.     Because i can't able to get any work list in CG37, System telling that no data available(with BOM number which i assigned material to that specification). How to get that Data in CG37.

4. SAP_EHS_1012_001 for Env Parametes i was maintained cause i want the BOS data to be captured in to that VA.

Please guide me on this any SAP Notes are there ? i searched in threads but i dint get correct info..

Thanks

Satya