Limit customer to buy from one vendor at a time

[Luke]

Since in my country we still can’t use Stripe for payments (and split option).
We would like to limit customer to add products to cart from one vendor at a time.

Is that possible?

[WCFM Forum]

HI,

Please add this code snippet to your child theme’s functions.php for the purpose –

add_action( 'woocommerce_add_to_cart_validation', function( $is_allow, $product_id, $quantity ) {
	$product = get_post( $product_id );
	$product_author = $product->post_author;

	//Iterating through each cart item
	foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
		$cart_product_id = $cart_item['product_id'];
		$cart_product = get_post( $cart_product_id );
		$cart_product_author = $cart_product->post_author;
		if( $cart_product_author != $product_author ) {
			$is_allow = false;
			break;
		}
	}

	if( !$is_allow ){
		// We display an error message
		wc_clear_notices();
		wc_add_notice( __( "Well, you already have some item in your cart. First checkout with those and then purchase other items!", "wcfm-ecogear" ), 'error' );
	}
	
	return $is_allow;
}, 50, 3 );

Thank You

[Luke]

Thank You very much ! 🙂

[WCFM Forum]

You are welcome 🙂

[Author]

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