Dustin

@tabrizi to allow importing that field, you’d need to add the following filters:

// Add our custom fields to the formatting callbacks array
add_filter( 'woocommerce_product_importer_formatting_callbacks', function ( $callbacks, $importer ) {

	$callbacks['date_created'] = array( $importer, 'parse_date_field' );

	return $callbacks;
}, 11, 2 );

// Add our custom fields to the default mapping columns
add_filter( 'woocommerce_csv_product_import_mapping_default_columns', function ( $columns, $raw_headers ) {

	$columns[ __( 'Published Date', 'woocommerce' ) ] = 'date_created';

	return $columns;
}, 11, 2 );

// Add our custom fields to the mapping options dropdown
add_filter( 'woocommerce_csv_product_import_mapping_options', function ( $options, $item ) {

	$options['date_created'] = __( 'Published Date', 'woocommerce' );

	return $options;
}, 11, 2 );

You may want to change the date format on the export to something like Y-m-d h:s:i so that on import you set the time of day that it was published, not just 12:00am on that date.

Adding the following filters to your child theme’s functions.php file or a custom plugin should do the trick:

// Add our custom columns to the existing columns
add_filter( 'woocommerce_product_export_product_default_columns', function ( $columns ) {

	// The key/id "published_date" is what we will use in the next filter to define the column's value
	$columns['published_date'] = __( 'Published Date', 'woocommerce' );

	return $columns;
}, 11 );

// Return the desired value for the "published_date" column
add_filter( 'woocommerce_product_export_product_column_published_date', function ( $value, $product, $column_id ) {

	return $product->get_date_created()->date( 'Y/m/d' );
}, 11, 3 );