CSV import errors in LeadLex and how to fix them

Most import errors come from the file type, a missing name column or a column mapped to the wrong field. LeadLex accepts CSV, XLSX and XLS files for contacts. Start the import under Network → Add Contact → Import CSV.

Messages and fixes

Message	What to do
Unsupported file type. Please upload a CSV, XLSX, or XLS file.	Save the file in one of those formats.
No contacts to import / No valid contacts to import	Map at least a name column (Full Name, First Name or Last Name) or an Email column.
N contacts have phone numbers in the Company field. Please check your column mapping.	Go back to Map Fields and fix the Maps To column.
N contacts had errors	The rest were imported. Fix the failing rows and import them again.
Import failed: no contacts could be saved. Please check your CSV format and try again.	Open the file, check the header row and try again.
Import timed out: The file may be too large. Try splitting it into smaller batches.	Split the file into smaller files.
Contacts imported, but adding them to the list failed.	Use Add to List from your network page.

Before you retry

1. Check the Maps To column on Map Fields. Choose Don't Import for columns you do not need.
2. Remove blank rows at the end of the sheet.
3. Import a sample of 10 rows first.

Updating instead of adding

To change contacts you already have, map a column to Contact ID (for updates).

What happens next

If the import finds likely duplicates, LeadLex shows a Review button and sends Review duplicates.