[dcolumbus]

$replace_order = new WC_Cart();
$replace_order->empty_cart( true );
$replace_order->add_to_cart( "256", "1");

The above code add product 256 to the Cart 1 time. But the issue I’m having is that I want to be able to completely override the product price… as far as I can tell, the only thing I can do it apply a coupon to the Cart.

Is there a way to completely override the price to something totally custom?

[ratnakar—storeapps]

Here is the code for overriding price of product in cart

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

function add_custom_price( $cart_object ) {
    $custom_price = 10; // This will be your custome price  
    foreach ( $cart_object->cart_contents as $key => $value ) {
        $value['data']->price = $custom_price;
        // for WooCommerce version 3+ use: 
        // $value['data']->set_price($custom_price);
    }
}

Hope it will be useful…

[ratnakar—storeapps]

You need to introduce an if statement for checking product id, in above code:

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

function add_custom_price( $cart_object ) {
    $custom_price = 10; // This will be your custome price  
    $target_product_id = 598;
    foreach ( $cart_object->cart_contents as $value ) {
        if ( $value['product_id'] == $target_product_id ) {
            $value['data']->price = $custom_price;
        }
        /*
        // If your target product is a variation
        if ( $value['variation_id'] == $target_product_id ) {
            $value['data']->price = $custom_price;
        }
        */
    }
}

Add this code anywhere and make sure that this code is always executable.

After adding this code, when you’ll call:

global $woocommerce; 
$woocommerce->cart->add_to_cart(598);

Only this product will be added with overridden price, other products added to cart will be ignored for overriding prices.

Hope this will be helpful.

[sark]

To make it dynamic ( override price for each item in cart separately ), you need to save the override product price in session with cart item key as session key using woocommerce_add_to_cart hook.

by using these session values you can calculate correct Cart Total and make the altered price appear in the Order Item as well

[lance-cleveland]

With WooCommerce 2.5 I found this to be a 2-part process. The first step is to change the run-time display of pricing when added to the cart via the woocommerce_add_cart_item filter. The second part is to set the persistent session data which is read during checkout via the woocommerce_get_cart_item_from_session filter. This seems to be faster than hooking the calculate totals filters (such as woocommerce_before_calculate_totals) as they are run very frequently in WooCommerce.

More details here:
woocommerce change price while add to cart

[tobros91]

This is how i did it, first i add my custom price to cart_item_data witch can save custom data to cart items, then i use woocommerce_before_calculate_totals, loop the cart and add the previously added price.

function add_donation_to_cart() { 

    $cart_item_data = array('price' => $_REQUEST['donate_amount']);
    $woocommerce->cart->add_to_cart( 5395, 1, '', array(), $cart_item_data);
}


add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

function add_custom_price( $cart ) {
    foreach ( $cart->cart_contents as $key => $value ) {
        $value['data']->price = $value['price'];
    }
}

[danyo]

For eveeryone that got here from Google. The above is now deprecated as i found out updating to WooCommerce 3.0.1.

Instead of the above you now need to use set_price instead of price

Here is an example:

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );
function add_custom_price( $cart_object ) {
    $custom_price = 10; // This will be your custome price  
    foreach ( $cart_object->cart_contents as $key => $value ) {
        $value['data']->set_price = $custom_price;
    }
}

I hope this helps people in the future 🙂

[saran]

I have tried all above code samples and latest woocommerce 3.0 is not support any of the above example. Use below code and working perfectly for me.

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

function add_custom_price( $cart_object ) {
    $custom_price = 10; // This will be your custom price  
    foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
        $cart_item['data']->set_price($custom_price);   
    }
}

[mohd-jafar]

After release of woocommerce version 3.0.0 product price is update on add to cart using set_price($price) function. The example is given as below :

add_action( 'woocommerce_before_calculate_totals', 'mj_custom_price' );

function mj_custom_price( $cart_object ) {
   $woo_ver = WC()->version; 
   $custom_price = 10;
   foreach ( $cart_object->cart_contents as $key => $value )
   {
       if($woo_ver < "3.0.0" && $woo_ver < "2.7.0")
       {
           $value['data']->price = $custom_price;
       }
       else
       {
           $value['data']->set_price($custom_price);
       }
   }            
}

Many Thanks

[sumon-cse-sust]

For the WordPress and Woocommerce latest version,Please use like this

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

function add_custom_price( $cart_object ) {
    foreach ( $cart_object->cart_contents as $key => $value ) {
        $custom_price = 5;
        $value['data']->set_price($custom_price); 
    }
}

[shrddha-patel]

You can use the following

add_filter( 'woocommerce_cart_item_price', 'kd_custom_price_message' );

function kd_custom_price_message( $price ) {

        $textafter = ' USD'; 
        return $price . $textafter;
}

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