Try this, it worked for me; based on the flow I generated a sample txt.
Since the flow is triggered by form submission, there’s no chance of repeated execution or invalid data.
In the merge node, it is necessary to select branch 2.
If this helps you, mark this answer as the solution. I’m grateful to be able to help.
Hi! It works! Thank you so much. A follow up question, if I am to reference the spreadsheet Id and sheet Id later on, I could just reference {{ $(‘Get SpreadsheetID & SheetID’).first().json.spreadsheetId }}?