Working in JO I see you can’t save a program unless you have participants. We setup the criteria for the participants but due to the filters no one met the criteria for that day. I should still be able to save the program with the understanding that eventually someone would meet the filter criteria and the program will run. I saw another post with this issue and the workaround was to create a dummy record that met the criteria so you could save but would like a better solution to save the program even if no participants meet the filter criteria yet.
Here is the older post with the workaround marked as solved.