woocommerce_check_cart_items

do_action('woocommerce_check_cart_items') is found 4 times:

• /includes/class-wc-checkout.php line 341

  		 *
  		 * @see WC_Checkout::validate_checkout()
  		 * @since 3.0.0 or earlier
  		 */
  		do_action( 'woocommerce_check_cart_items' );
  	}
  
  	/**
  	 * Output the billing form.
  	 */
  	public function checkout_form_billing() {
  

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• /includes/shortcodes/class-wc-shortcode-cart.php line 93

  			WC()->cart->calculate_totals();
  		}
  
  		// Check cart items are valid.
  		do_action( 'woocommerce_check_cart_items' );
  
  		// Calc totals.
  		WC()->cart->calculate_totals();
  
  		if ( WC()->cart->is_empty() ) {
  			wc_get_template( 'cart/cart-empty.php' );
  

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• /includes/shortcodes/class-wc-shortcode-checkout.php line 351

  			return;
  		}
  
  		// Check cart contents for errors.
  		do_action( 'woocommerce_check_cart_items' );
  
  		// Calc totals.
  		WC()->cart->calculate_totals();
  
  		// Get checkout object.
  		$checkout = WC()->checkout();
  

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• /src/StoreApi/Utilities/CartController.php line 493

  		 *
  		 * @deprecated
  		 * @internal Matches action name in WooCommerce core.
  		 */
  		do_action( 'woocommerce_check_cart_items' );
  
  		$cart_errors = NoticeHandler::convert_notices_to_wp_errors( 'woocommerce_rest_cart_item_error' );
  
  		if ( $cart_errors->has_errors() ) {
  			throw new InvalidCartException(
  				'woocommerce_cart_error',
  

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