Hi, I am still fairly new to SAS and can do most of your basic tests and codes. I am an intern at a company and am working on a school project that involves the company, and am having trouble with PROC OPTMODEL. Thought I could teach myself, but it’s a bit harder than I realized. I am attaching a very short modified dataset as an example of what I am trying to do with a larger dataset. I’d like to start small, and learn how to add more constraints to my larger model myself. But I can’t even get a basic code to run. I’m trying to optimize a schedule for efficiency. (Later, I’d use cost, etc). I have three people in the data set that need to work 3 days, 8 hour shifts, when available (1). I am attaching what I have so far. Any help or sample code so I could get a base start would be very much appreciated! Thank you!