Kowsaliya

add_filter('woocommerce_coupon_message', function ($msg, $msg_code, $coupon){
    if(!empty($coupon)){
        if(method_exists($coupon, 'get_code')){
            $applicable_coupons = array('blackfridaysale'); //COUPON 
            $coupon_code = $coupon->get_code(); //Applied COUPON
            //DO THE PROCESS FOR CHECKING THE CONDITION MATCHES OR NOT
            if(in_array($coupon_code, $applicable_coupons)){
                $msg = ''; //YOU CAN CUSTOMIZE THE MESSAGE HERE
            }
        }

Kowsaliya

add_filter('advanced_woo_discount_rules_discount_prices_of_product', function ($discount_prices, $product, $quantity, $cart_item){
    //FOR CHANGING DISCOUNTED_PRICE you can change it in $discount_prices['discounted_price']
    $discount_prices['discounted_price'] = wc_round_discount($discount_prices['discounted_price'], 2);
    return $discount_prices;
}, 10, 4);

Kowsaliya

add_filter('advanced_woo_discount_rules_notice_on_remove_coupon_while_having_a_discount', function ($msg, $coupon_code){
    $msg = 'The product(s) in your shopping basket are already discounted up to 15% or more than the value of your Coupon code "'.$coupon_code.'". The Coupon code discount is therefore already applied.'; //YOU CAN CUSTOMIZE THE MESSAGE HERE
    return $msg;
}, 10, 2);

Kowsaliya

add_filter('woocommerce_coupon_message', function ($msg, $msg_code, $coupon){
    if(!empty($coupon)){
        if(method_exists($coupon, 'get_code')){
            $coupon_code = $coupon->get_code(); //Applied COUPON
			//DO THE PROCESS FOR CHECKING THE CONDITION MATCHES OR NOT
			if($coupon_code == 'FREENEONGOBY' || $coupon_code == 'freeneongoby'){
				$msg = ''; //YOU CAN CUSTOMIZE THE MESSAGE HERE
			}
        }
    }

Kowsaliya

<div class="email-product-list" style="padding: 15px 25px;">
    <?php
    /**
     * Order details table shown in emails.
     *
     * HOWEVER, on occasion WooCommerce will need to update template files and you (the theme developer).
     * will need to copy the new files to your theme to maintain compatibility. We try to do this.
     * as little as possible, but it does happen. When this occurs the version of the template file will.
     * be bumped and the readme will list any important changes.

Kowsaliya

<div class="email-product-list" style="padding: 15px 25px;">
    <?php
    /**
     * Order details table shown in emails.
     *
     * HOWEVER, on occasion WooCommerce will need to update template files and you (the theme developer).
     * will need to copy the new files to your theme to maintain compatibility. We try to do this.
     * as little as possible, but it does happen. When this occurs the version of the template file will.
     * be bumped and the readme will list any important changes.
     */

Kowsaliya

function woo_discount_rules_discount_amount_before_apply_method($discount_amount){
	$discount_amount = wc_round_discount($discount_amount, 1);
	return $discount_amount;
}
add_filter('woo_discount_rules_discount_amount_before_apply', 'woo_discount_rules_discount_amount_before_apply_method', 10);

Kowsaliya

if(!function_exists('woo_discount_rules_has_price_override_method')){
    function woo_discount_rules_has_price_override_method($has_price_override, $product, $on_apply_discount){
		return true;
    }
}
add_filter('woo_discount_rules_has_price_override', 'woo_discount_rules_has_price_override_method', 10, 3);

function woo_discount_rules_price_rule_final_amount_applied_method($discountedPrice, $price, $discount, $additionalDetails, $product, $product_page){
    if($discountedPrice < 0) $discountedPrice = 0;
    $total_price = $product->get_price();

Kowsaliya

if(!function_exists('woo_discount_rules_has_price_override_method')){
    function woo_discount_rules_has_price_override_method($has_price_override, $product, $on_apply_discount){
		return true;
    }
}
add_filter('woo_discount_rules_has_price_override', 'woo_discount_rules_has_price_override_method', 10, 3);

function woo_discount_rules_price_rule_final_amount_applied_method($discountedPrice, $price, $discount, $additionalDetails, $product, $product_page){
    if($discountedPrice < 0) $discountedPrice = 0;
    $total_price = $product->get_price();

Kowsaliya

if(!function_exists('woo_discount_rules_has_price_override_method')){
    function woo_discount_rules_has_price_override_method($hasPriceOverride, $product){
        return true;
    }
}

add_filter('woo_discount_rules_has_price_override', 'woo_discount_rules_has_price_override_method', 10, 2);