Sender Contact Import Failed

How to fix it

// try these in order, the most common fix is first

1. FIX 1Check format and size

   Copy steps
   1. 01Save as CSV, TXT or XLSX
   2. 02Keep the file under 64 MB, split it if needed
   3. 03Convert to another supported format if it still fails
   Did this fix it? Yes No

2. FIX 2Fix headers

   Copy steps
   1. 01Put headers in row 1 and data from row 2
   2. 02Use Email address, First name, Last name as header names
   Did this fix it? Yes No

3. FIX 3Clean email addresses and blanks

   Copy steps
   1. 01Trim spaces around emails
   2. 02Fix missing @ or domain extensions
   3. 03Delete empty rows and blank columns
   Did this fix it? Yes No

4. FIX 4Use Sender's template

   Copy steps
   1. 01Download the CSV or Excel template from the import help page
   2. 02Paste your data in and import again
   3. 03Re-import only flagged rows; Sender matches by email so existing contacts are updated
   Did this fix it? Yes No

Symptoms

File will not upload, rows flagged or skipped, data lands in the wrong fields.

Why it happens

• C-01Unsupported file type or file over 64 MB
• C-02No header row or non-standard header names
• C-03Emails with spaces, missing @ or domain
• C-04Empty rows or columns in the sheet

// this guide also covers

• sender import failed
• sender csv import error
• sender.net import subscribers

The same problem in other apps

All storage, upload & download guides →

• Brevo Contacts Import Failed (Brevo)
• Mailchimp Contact Import Not Working (Mailchimp)
• ConvertKit (Kit) CSV Import Failed or Wrong Subscriber Count (ConvertKit (Kit))

Other Sender errors

• Sender Account Suspended
• Sender Account Under Review or Pending Verification
• Sender Emails Going to Spam
• Sender SPF, DKIM or DMARC Not Verifying
• Sender Popup Form Not Showing on Website
• Sender Form Subscribers Not Added to Group
• Sender Abandoned Cart Emails Not Sending
• Sender Can't Send Campaign: Plan Limit Exceeded