Hi James
By MS do you mean Masters? I'm not US based but my background is Security and GRC so I'll offer some suggestions from that perspective
For the GRC perspective, I would look at either studying Business Related discipline that might capture topics such as Accounting, Financial Practises, Auditing, etc.
A secondary option to facilitate your career path would be to study Business Process Methodologies and Architecture. Learn how to make processes more efficient and analyse them. This could potenitally assist you in configuration of your SAP system as well as analysing business process for risks (leading to process controls and risk management)
Finally, have you considered tertiary education may not be necessary at the moment (for the cost). Perhaps you could look at private certification relating to audit or SAP. With the private certification, you may then have the opportunity to become a member of certain professional bodies which can further your education as well as networking and job opportunities.
Regards
Colleen
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