Update Products and Variations Stock from CSV

In this tutorial I would like to share with you a ready to use example how you can sync WooCommerce products and variations inventory with a CSV file automatically.

Our CSV file is going to look like this:

sync WooCommerce product stock quantities with CSV files
Of course, if you’re going to use the file just to sync stock quantities, ID and Name columns better be removed.

To make this tutorial a little bit simpler we are going to put the file in the WordPress uploads folder, but for sure you can create a WooCommerce settings page where you can upload it.

You might also be interested in a plugin that allows to sync product inventory of products with the same SKU between different WooCommerce stores.

Below is the function that does all the stuff:

function rudr_sync_product_stock_from_csv( $filename = 'sample_products.csv' ) {

	$upload_dir = wp_upload_dir();
	// so the file is always in wp-content/uploads dir
	$filename = "{$upload_dir[ 'basedir' ]}/{$filename}";

	if( ! file_exists( $filename ) ) {
		return false;

	$file = fopen( $filename, 'r' );

	// it is not necessary but we can format the CSV result into a readable array
	$csv_products = array();
	while( false !== ( $result = fgetcsv( $file, 100, ";" ) ) ) {
		$csv_products[] = array(
			'sku' => $result[1],
			'stock_qutantity' => $result[3]
	array_shift( $csv_products ); // remove heading of the product table
	// now we have
	// Array( sku => , stock_qutantity => )

	// it is time to loop through the products and update their stock quantities
	foreach( $csv_products as $csv_product ) {
		// in case stock quantity value is empty in CSV file
		if( empty( $csv_product[ 'stock_qutantity' ] ) || ! $csv_product[ 'stock_qutantity' ] ) {
		// let's try to get a product from SKU
		$product_id = wc_get_product_id_by_sku( $csv_product[ 'sku' ] );
		if( ! $product_id ) {
		// let's try to get a product object next
		$product = wc_get_product( $product_id );
		if( ! $product ) {

		$product->set_manage_stock( true );
		$product->set_stock_quantity( $csv_product[ 'stock_qutantity' ] );



Let’s take a closer look at the code:

Below is the code example how you can make the CSV file to parsed automatically every hour.

add_action( 'rudr_doing_csv_sync', 'rudr_sync_product_stock_from_csv' );

if( ! wp_next_scheduled( 'rudr_doing_csv_sync' ) ) {
	wp_schedule_event( time(), 'hourly', 'rudr_doing_csv_sync' );
Misha Rudrastyh

Misha Rudrastyh

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