Can some here help? It seems like a very silly thing, but we haven’t been able to go live in 2 weeks because of this? We cannot figure out a way to get the ZPL file created by NetSuite to go to shipping label printer connected to our Mac computers

I am working on the same thing right now. I have done some testing with Browser Print (https://www.zebra.com/us/en/support-downloads/printer-software/by-request-software.html), as well as qz (https://qz.io/). I think I am going to skip it all and use my own browser to do it though. I have build a few different browsers in the past using cefSharp. This will allow me to use javascript to pass the data straight to the .net side of the app, and then I can send the raw ZPL to the printer. I am not sure if this can be used with Mac though.

Try looking into SummitIT label print module, it works great for zebra printers, using it right now and exploring further usage. FYI on MAC environment