When using google drive to monitor for new files, if it detects multiple files, when I go to upload and use the original ID for the filename, it says there are multiple matching items for that ID.
What is the error message (if any)?
Multiple matching items for item [0]
An expression here won’t work because it uses .item and n8n can’t figure out the matching item. (There are multiple possible matches)
You haven’t specified in what node the issue occurs. But generally, better not to use the Code node in the “Run once for all items” mode. It may break the sequence.
This is detecting 3 spreadsheets were added. I used your edit fields to trim the columns, so much simpler thank you. But I still have the multiple items issue at the upload. And I hope that n8n is treating each spreadsheet individually and not merging them.
Ah, that’s because your Extract node is extracting data from all 3 files and then outputting them as a single array of items, which later gets combined into one CSV file.
To avoid such a case, use a sub-workflow and move these nodes to it (you can select the desired nodes, then click with the right mouse and select the “Move to Sub-workflow” option)