Our Design & Print Online has a max file size of 3,000 rows and 20 columns for a mail merge. When you export your contacts from Google Contacts as a csv, it adds more than 20 columns to the spreadsheet which prevents you from merging the data. You will need to delete these additional columns in Google Sheets before importing your data. Here's how:
Delete Columns in Google Sheets:
- Click and drag your mouse across the top of multiple columns to highlight them
- Then right click and select Delete Columns
- You can now merge your data directly from Google Drive in Design and Print Online