Frequently Asked Questions Question: Will a Sage MAS 90 upgrade work for my business? Answer: Sage MAS 90 works well for wholesalers, distributors, manufacturers and retail or service industry businesses.  We understand every business is unique and it is our desire to learn how you are utilizing your current software package, what needs are not being met, as well as any additional functionality you may require.  Your systems consultant will help you understand how Sage MAS 90 can provide the information you need to run your business.