First off, Happy Holidays to everyone here. I have been diligent in cleaning up my code to make a well-functioning app. I wanted to have an idea of not "who," but where and when a particular downloaded app was being used. With help, I added a random number generator from 999,999 to 9,999,999 and this becomes the User_ID number. I modified an available script to what I think should allow me to send data to my Google Sheets.
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I am not sure what I am doing, as this is new territory for me. I am mostly copying and pasting and crossing my fingers.
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Given that I get an error code, I know I am improperly "mixing and matching" but I do not know where. Can someone help me eliminate my error and, perhaps, lead me to a successful Sheets download?

