EBS: Contact Upload Error Codes – Missing Required First Name or Last Name

2026-06-09 14:30:38 UTC

Error

Error Code:

Not loaded - critical error

Error Messages:

Missing value in the following required column: First Name

Missing value in the following required column: Last Name

Missing value in the following required column - First Name example
Missing value in the following required column - Last Name example

Contact upload failure error messages may be viewed under Contacts > Uploads > Upload results icon. Selecting the Upload results icon upload results icon next to the desired file opens the Upload Results page, where the error is displayed.

Root Cause

These errors mean that a required name field was not provided for the contact in the upload file:

  • Missing value in the following required column: First Name — the First Name was not provided for the contact.
  • Missing value in the following required column: Last Name — the Last Name was not provided for the contact.

Solution

Ensure that each contact in the upload file includes a value in the required name columns, specifically the First Name and Last Name columns.

The following file would cause the First Name error because a First Name was not provided for the contact.

Excel file upload - missing First Name

The following file shows a corrected upload in which each contact record includes a value in the First Name column.

Corrected Excel file upload - First Name

The following file would cause the Last Name error because a Last Name was not provided for the contact.

Excel file upload - missing Last Name

The following file shows a corrected upload in which each contact record includes a value in the Last Name column.

Corrected Excel file upload - Last Name

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