Error Uploading CSV File: Bad Source Config Issue

·Jan 11, 2026 08:11 AM·

I'm getting this error while uploading the csv file. Any suggestions? An error occurred. Please try again or contact support: Bad source config: "wizardPreviewRecords" is not allowed

3 comments

· Sorted by Oldest

Clay Support
APP
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This error suggests there's an issue with your CSV file configuration. Try these troubleshooting steps:
• Ensure your CSV doesn't include "created at" or "updated at" columns
• Keep your file within 72 columns and 50,000 rows maximum
• Use UTF-8 encoding with comma-separated values
• Make sure the CSV filename is short
• Try uploading to Google Sheets first, then download as CSV and re-upload
If these don't work, you can share your CSV file here and I'll help troubleshoot further.
Clay Support
APP
·
·
Is that what you were looking for?
Clay Support
APP
·
·
If you still need help resolving the CSV upload error, I’m here to assist you further. Would you like to provide more details about the file or the steps you’ve tried so far?

Clay Support
APP
·
·
This error suggests there's an issue with your CSV file configuration. Try these troubleshooting steps:
• Ensure your CSV doesn't include "created at" or "updated at" columns
• Keep your file within 72 columns and 50,000 rows maximum
• Use UTF-8 encoding with comma-separated values
• Make sure the CSV filename is short
• Try uploading to Google Sheets first, then download as CSV and re-upload
If these don't work, you can share your CSV file here and I'll help troubleshoot further.
Clay Support
APP
·
·
Is that what you were looking for?
Clay Support
APP
·
·
If you still need help resolving the CSV upload error, I’m here to assist you further. Would you like to provide more details about the file or the steps you’ve tried so far?