Default column values

It can be helpful to store default values for columns that get not included in the CSV file.

It is strongly recommended that, by default, the value for custom-configuration-dir is <magento-install-directory>/app/etc/configuration
As soon as a default configuration is copied, changed, extended, or modified and stored under the path specified in custom-configuration-dir, only this configuration takes effect and always overwrites the original configuration
The configuration handling is mainly based on the PHP framework Symfony, and therefore unexpected effects maid occur in different configuration constellations
- Consequently, it is always recommended to test modified configurations concerning unwanted side effects

Example

Only for simple products; therefore, the column product_type is unnecessary.

A custom snippet can get used to define default values for columns not included in the CSV file.

{
  "default-values": {
    "catalog_product": {
      "my-column": "my-column-value" (1)
    }
  }
}

1	For each user-defined field, a key-value pair can get specified

The default value can get used only if the CSV file does not contain the column
If the column exists, the column value always gets used, even if the column is empty