I also created a new Google Sheet and updated the ID in your plugin. Export Synch to new spreadsheet just says nothing ‘no products found to synch-back’ although there are plenty of products in Woo.
Also, I changed status from ‘draft’ to ‘published’ and plugin says it exported to line 38 in Google Sheets (which is the next empty row), but no data was actually exported. Line 38 remains blank in Google Sheets Products Page
