Caffeinated Wisdom

How can you allow a Business User to maintain the business logic of your application? If your business users are Excel-savvy (as much business users are), then you could use Microsoft’s Graph API to access and run the logic within those Excel workbooks ( workbook resource type - Microsoft Graph v1.0 | Microsoft Learn ). This is not the OLE Automation of years past. We are talking about calling an HTTP based API. The approach is simple, from the business user side: Have the business users create the workbook and adjust it so that it performs the business rules it needs. They can designate some of the cells to be used as the “parameters” for the business logic. For example, given the values of cells A2 and B2 , run a series of formula calculations whose final result is in cell B30 . Save the excel workbook in a folder in your business’ OneDrive. Then, from your application code, make a series of HTTP calls to the MS Graph API: Get the Auth Token Call the createSession endpoint to creat