WC_Product_External::set_backorders() │ public │ WC 3.0.0

External products cannot be backordered.

Method of the class: WC_Product_External{}

No Hooks.

Return

null. Nothing (null).

Usage

$WC_Product_External = new WC_Product_External();
$WC_Product_External->set_backorders( $backorders );
$backorders(string) (required)
Options: 'yes', 'no' or 'notify'.

Changelog

Since 3.0.0 Introduced.

WC_Product_External::set_backorders() code WC 8.7.0

woocommerce/includes/class-wc-product-external.php 
public function set_backorders( $backorders ) {
	$this->set_prop( 'backorders', 'no' );

	if ( 'no' !== $backorders ) {
		$this->error( 'product_external_invalid_backorders', __( 'External products cannot be backordered.', 'woocommerce' ) );
	}
}