Hi Ravi,
It's a very broad query. Since you are referring to compliance management, on a high level you would need your enterprise structure, partners, documents, legal regs, item categories mapping, embargo, SPL, legal control to be activated. BTW, for the documents to be successful for compliance screening, all 3 types of master data (material, customer and vendor) should start syncing into GTS.
As you move along you may identify more things based on your requirements. Since this is a roll-out you may have a lot of above items already available or configured, please validate.
Others on the forum can pitch in if you run into issues as you move along.
Hope it helps!
-Shrini