I am trying to add javascript code to a master sheet where I make copies of the sheet for future clients. When I change a date in one cell, I want another cell to change to that same date, and Another cell with a dropdown menu to change status to Completed. I believe I set the code correctly and set the trigger correctly, but I still cannot seem to get it to work.

Please help.

I added the code to Google Apps Script. Ran it successfully. Then added the trigger and re-ran the code successfully. I am still not seeing the result on the spreadsheet.