I have only been working with CODAP for about a week, so I’m pretty new. I have not ever found a way to enable sharing. That includes documents where I’ve imported the spreadsheet from another file, documents where I generated the entire spreadsheet within the document, and documents with smaller subsets of an original spreadsheet that I made a copy of. I saved each document before trying to enable sharing, but I also tried to enable sharing before each was saved. No luck no matter what.
Thank you for helping me figure this out!