Here are the most common reasons CSV uploads fail and how to fix them:
File Requirements:
** Remove "created at" or "updated at" columns
** Keep files under 72 columns and 50,000 rows
** Use UTF-8 encoded CSV files with comma separators
** Keep the CSV file name short
Quick Fix:
Upload your data to a public Google Sheet, download it as CSV, then try uploading again. This resolves hidden formatting issues and incorrect separators.