The fields have the same ID

Symptoms

When attempting to copy an element, Sharegate displays the following error message:

The fields 'Field Name' and 'Field Name' have the same ID. A list cannot contain two fields with the same ID.

Error code

Details

This error occurs because the list schema is invalid and contains a field more than once. This may be because the list template used to create the list defined a field more than once.

Solution

Edit the list columns and remove any duplicate fields.

If the duplicate columns are hidden (this can happen if the column is a built-in SharePoint column), you can remove one of the duplicate columns with PowerShell. If you have trouble identifying which column to remove or if you are not familiar with PowerShell, please contact us.