Custom Free Shipping Conditions in 1C-Bitrix

We develop custom free delivery conditions for 1C-Bitrix, overcoming the single-condition limitation of the standard restriction. When your business demands flexible rules—free only for promotional items, for new customers, by promo code, or with different thresholds per city—the built-in limits fall short. Our team of engineers with 10+ years of Bitrix experience has implemented 50+ projects with custom logistics. Let's walk through how to set up free delivery under non-standard conditions and what to watch out for to avoid breaking the cart.

Why Standard Bitrix Delivery Restrictions Aren't Enough

The default mechanism in Bitrix allows only one restriction: a minimum order amount for all customers. If you need differentiation by user groups, product types, or promocodes, you must write custom handlers. In real projects we have encountered 20+ condition variants not covered out of the box. Custom handlers are 3x more flexible than standard restrictions, enabling unlimited condition combinations. According to industry studies, 70% of e-commerce sites use free shipping as a marketing tool.

How to Set Up Free Delivery with the Standard Amount Restriction

1. In the admin panel, for each delivery handler go to "Restrictions" → "By order price" → set "Min order price" = 0, "Max" = empty. This enables the method for any amount.

2. For free delivery, create a separate handler instance (e.g., "CDEK Free") with zero price and a restriction based on a minimum order amount (configured in handler settings):

// Handler with fixed zero price
class FreeDeliveryWrapper extends \Bitrix\Sale\Delivery\Services\Base
{
    protected function calculateConcrete(
        \Bitrix\Sale\Shipment $shipment
    ): \Bitrix\Sale\Delivery\CalculationResult {
        $result = new \Bitrix\Sale\Delivery\CalculationResult();
        $result->setDeliveryPrice(0);
        $result->setPeriodDescription('2–5 days');
        return $result;
    }
}

The amount restriction is set via the standard UI. It's better to store the threshold in the handler's settings so you can change it without touching code. For more details on creating delivery handlers, see the documentation.

How to Implement Free Delivery for Specific Products Only

Scenario: delivery is free if the cart contains a product from the "Promo" section or a product with a certain property.

class ConditionalFreeDelivery extends \Bitrix\Sale\Delivery\Services\Base
{
    public static function isCompatible(\Bitrix\Sale\Shipment $shipment): bool
    {
        $basket = $shipment->getOrder()->getBasket();

        foreach ($basket as $item) {
            $productId = $item->getProductId();
            // Check product property FREE_DELIVERY = Y
            $props = \CIBlockElement::GetProperty(
                $item->getField('MODULE'),
                $productId,
                [],
                ['CODE' => 'FREE_DELIVERY']
            )->Fetch();

            if ($props && $props['VALUE'] === 'Y') {
                return true;
            }
        }

        return false;
    }

    protected function calculateConcrete(
        \Bitrix\Sale\Shipment $shipment
    ): \Bitrix\Sale\Delivery\CalculationResult {
        $result = new \Bitrix\Sale\Delivery\CalculationResult();
        $result->setDeliveryPrice(0);
        return $result;
    }
}

How to Set Up Free Delivery for New Customers

To offer free delivery only on first orders, use the OnSaleOrderSaved event and a flag on the order. In the handler restriction, check that flag. Algorithm: when an order is created, check the user's order history; if none, set a custom flag. In the delivery handler, check the flag and set price to zero.

How to Set Up Free Delivery by Promo Code

In the Bitrix basket, a promo code can be applied that affects delivery cost. Implement via a custom discount handler on delivery or through a cart property. The delivery handler must check for the coupon with a specific type and nullify the price.

Displaying Free Delivery Progress in Cart

Show in the cart: "Remaining for free delivery: [amount]". This is not a built-in Bitrix feature—implement it at the cart component template level.

// In the cart template
$threshold    = getFreeDeliveryThreshold(); // from handler settings
$basketTotal  = $APPLICATION->IncludeComponent('bitrix:sale.basket.basket', '', ['GET_BASKET_TOTAL' => 'Y'], false, ['HIDE_ICONS' => 'Y']);
$currentTotal = $GLOBALS['BASKET_TOTAL'] ?? 0;

$remaining = max($threshold - $currentTotal, 0);
if ($remaining > 0) {
    echo 'До бесплатной доставки: ' . \CCurrencyLang::CurrencyFormat($remaining, 'CURRENCY');
} else {
    echo 'Доставка бесплатна!';
}

It's better to retrieve $threshold from the delivery handler settings rather than hardcoding it in the template—so when the threshold changes, only one place needs updating.

What's Included in Free Delivery Setup

We guarantee stable operation of the delivery scheme at all stages. Contact us for a consultation on your project. Our pricing for custom delivery handler development starts at $500 for basic conditions and ranges up to $2000 for complex multi-zone setups. Get an individual timeline and cost estimate by filling out the form on our website.

Timelines

Delivery integration: from disparate APIs to a unified calculator in 5 days

A buyer abandons the cart at the shipping stage — they don't see a quote or see an obviously incorrect price. Each such case loses conversion. Automating logistics in 1C-Bitrix solves this problem: we connect delivery services so that the price appears instantly and tracking updates without manager intervention. Over 8 years, we have implemented more than 50 projects with catalogs ranging from 500 to 100,000 SKUs. Average time to connect one carrier is 4 days.

How to accelerate the connection of delivery services to 1C-Bitrix?

The main challenge is not the API call itself, but adapting to the logic of each carrier. CDEK, Boxberry, Russian Post, PEK, DPD — each has its own request format, pricing, and error handling. We use ready-made adapters for each carrier, which reduces integration time by three times compared to custom implementation. Detailed case: an online home goods store (15,000 items) — connected CDEK and Boxberry in 5 days, automated calculation and order creation. Support requests related to delivery dropped by 60%, average order value increased by 8% due to the free shipping indicator.

Why is each carrier's API a separate challenge?

CDEK — volumetric weight and pickup point map

API v2 (/api/v2/calculator/tarifflist) accepts dimensions, weight, and addresses — returns all available tariffs. Pitfalls: volumetric weight is calculated using the formula (L × W × H) / 5000. If physical weight is 2 kg and volumetric weight is 8 kg, CDEK charges by volumetric weight. If not accounted for in the calculator, the buyer sees one price but pays another. The pickup point map is loaded via /deliverypoints. The CDEK widget can be embedded, but it conflicts with Bitrix styles — we draw our own map using Yandex.Maps. Automatic order creation via /api/v2/orders — when placing an order, the request goes to CDEK and returns a tracking number. Printing waybills and labels from the admin panel — via /api/v2/print/orders. Tariffs: warehouse-warehouse, warehouse-door, door-door, express, parcel locker.

Boxberry — extensive pickup point network in regions

The most extensive pickup point network in small towns. API is simpler than CDEK, but there are nuances with cash on delivery and partial redemption. Pickup point map with filters: fitting, card payment, weekend operation. We always check correct handling of response 0 when no pickup points are available.

Russian Post — stability at the cost of speed

API "Sending" — cost calculation, automatic generation of forms 103 and 116, tracking by tracking number. Tariffs: parcel, printed matter, EMS. International shipments. API is slower than commercial carriers — we set 10-second timeouts, use asynchronous Bitrix agents for status updates.

PEK — heavy loads and groupage

When you need to ship a sofa or equipment. Calculation of groupage cargo, insurance, crate. Delivery to terminal and door-to-door. PEK terminal indices are loaded into an infoblock for auto-completion.

DPD — express delivery with time slots

DPD across Russia and abroad. Delivery within a selected time interval, return of signed documents. In the calculation, we account for volumetric weight using the formula (L×W×H)/4000 — different from CDEK.

How to combine different carriers in a single calculator?

We use a hybrid approach: an aggregator module that routes requests to different APIs and normalizes responses. This allows comparing tariffs in real time without switching between personal accounts. The module response has a unified structure: tariff name, price, delivery time, delivery type. Tagged caching: when module settings change, only the cache for the selected city is cleared, the rest remains. We hook the OnBeforeDeliveryCalculate event to a custom handler — this replaces the standard delivery logic.

Cost calculation: what pitfalls are encountered?

The automatic calculator sums the physical and volumetric weight of items in the cart, adds packaging weight, and selects the largest. Sounds simple, but:

• Dimensions must be filled for each item. No dimensions — no calculation. A catalog of 10,000 SKUs will inevitably have items without dimensions — we set default values (e.g., 0.1×0.1×0.1 m) and warn the manager via a mail event.
• Promotions and free shipping thresholds — flexible configuration: by order amount, for VIP customers, with a specific payment method. Implemented via custom cart properties.
• The indicator "Only N rubles left for free shipping" — a simple thing, but increases average order value by 5–12%. Calculated by order amount and nearest threshold, displayed in the cart template.

How to automate tracking, pickup, and courier delivery?

Tracking. Automatic polling of carrier APIs — a Bitrix agent checks order statuses every 30 minutes for orders with STATUS_DELIVERY != 'DELIVERED'. Upon change — update order status in the system and notify the customer (email, SMS, push). Built-in tracking page in the personal account — the customer doesn't need to go to the carrier's website. Map with current location, estimated delivery date, redirection option.

Pickup. Own pickup points on the map: addresses, schedule, contacts. Search for the nearest by customer address. Real-time availability check, reservation until a specific time. QR code for quick pickup and SMS about readiness.

Courier delivery. Delivery zones with different costs. 2-hour slots, courier schedule management, order limit per slot. Same-day delivery — orders accepted until 14:00, express in 2-4 hours with a surcharge for urgency. Integration with navigation for route optimization.

Multi-warehouse. Multiple warehouses with addresses and service zones. Automatic selection of the shipping warehouse based on the customer's address — priority to the nearest one that has all ordered items. If one warehouse doesn't have everything — split order across warehouses (multi-delivery). Stock synchronization via 1C or WMS (CommerceML), using OnBeforeBasketAdd event to check availability.

Comparison of transport companies

What stages does connecting delivery services consist of?

1. Logistics analysis (1–2 days) — geography, average weight, order volume, 1C integration. We recommend a combination of carriers.
2. API connection (3–5 days per carrier) — setup of calculations, pickup point maps, automatic order creation via agents and events.
3. Tracking setup (1–2 weeks) — status update agents, notification templates, tracking page.
4. Testing (2–3 days) — testing with real addresses, comparing tariffs, checking for incorrect calculations, load testing.
5. Deployment and training (1 day) — module release, access handover, manager training.
6. Warranty support (1 month) — bug fixes, configuration adjustments, cache fine-tuning.

Estimated implementation timelines

Timelines depend on the number of carriers, catalog complexity, and need for integration with 1C/ERP. Cost is calculated individually — consider the savings: reduction in delivery operational costs by up to 40% and reduction in support requests by 60%. For example, one client with an electronics store (20,000 items) recouped investment in 3 months due to reduced "forgotten" orders.

Ready to accelerate your online store's logistics? Contact us — we'll help select the optimal carrier combination for your assortment and budget. Request a consultation, and we'll prepare a proposal within 1 business day.