Found missing column 'column-name', this column has 'NOT NULL' constraint, no column rules found for this instance. It is impossible to replace this column with 'NULL'.
This error is returned when a column missing from an SCT file has a NOT NULL constraint defined on it. By default, a missing column is set to null, but if the column is defined as NOT NULL, this error will be generated instead.
To avoid this error, create a Column Rule that will set this column to a value other than null.