Total three round :- Technical, Managerial and HR. Technical Round Consists of Questions :- a) Subcontracting b) Inter and Intra STO c) Whether Material is having only one Valuation class d) Consignment STO e) One scenario based questions , How different vendor for the same product will have different GL Account. Managerial Round:- a) Two type of STO. b) You best area of Interest in SAP MM and then they will ask questions on that. So yes it was easy but again it depend on your luck.