I'm a graduate Mechanical engineer looking for a SAP career. Is there any dual specialization in MBA for Operation management and finance

SAP training if offered would be an advantage. Is SIOM the best option? or any other universities which have affiliation/recognition with due value 4 their MBA program. As per the reviews the MBA+SAP offered colleges doesnot have any affiliation/recognition? Is it true? Guide me since gng 4 regular