InPost Lockers and BigCommerce
Integration Agency & Consultants
High cart abandonment often signals a failure to provide convenient out-of-home delivery at checkout. At scale, the challenge is not just displaying a map, but ensuring the specific InPost Point ID passes from the BigCommerce checkout into order notes without data loss. If this locker selection fails to reach the warehouse system, fulfilment stalls or shipments are sent to incorrect residential addresses. We focus on the precise coordination between BigCommerce shipping zones and the InPost API to ensure every order contains the validated locker data required for a first-time delivery success.
Auditing checkout flows and API gaps
Connect your InPost Lockers and BigCommerce platforms with expert consulting, ensuring your Smart Lockers and Ecommerce operations work together efficiently. Our system audit services uncover inefficiencies and integration gaps, empowering both our consultants and your team to take decisive action. By focusing on BigCommerce, InPost Lockers, Smart Lockers, and Ecommerce, we help your tech ecosystem run smoothly, so you can deliver a reliable customer experience and keep your business moving forward.
Solution Design
We design InPost and BigCommerce integrations with a strict focus on data transport between the checkout widget and the carrier label. BigCommerce acts as the source of truth for the order, but the InPost API remains the authority for locker availability. A key design decision is the mapping of the InPost Point ID: we capture this during the checkout session and inject it into the order record to ensure downstream warehouse systems receive a valid destination. We accept a trade-off in implementation by using specific validation logic before the order is finalised. While real-time validation adds a dependency during the checkout process, it prevents the high cost of manual order editing or failed residential deliveries. This design ensures finance reconciles shipping overheads accurately while operations maintains a clean fulfilment queue without destination gaps.
Mapping locker IDs to order metadata
The integration bridges the BigCommerce checkout and the InPost locker network to maintain data integrity from the moment a customer clicks 'Pay' to the final collection. We use the InPost API to render a dynamic map within the BigCommerce checkout, where the specific Point ID becomes the primary data object. This ID is mapped into BigCommerce order metadata to serve as the warehouse destination. By synchronising locker availability, the system prevents orders being placed for inactive or full lockers. Monitoring is embedded to detect when the handshake between selection and order creation fails, ensuring the warehouse does not receive an order without a valid InPost destination ID. This prioritises delivery accuracy and prevents the operational drag of manual address correction.
Orchestrating secure flows through certified IPaaS
Leveraging IPaaS with ISO 27001 and SOC 2 and above security accreditations ensures secure, efficient integration of InPost Lockers and BigCommerce for Ecommerce businesses. IPaaS connects Smart Lockers, InPost Lockers, BigCommerce, and other Ecommerce platforms, automating data flow and supporting scalability. Using IPaaS simplifies connecting Smart Lockers and BigCommerce, while maintaining strict security standards, making integration projects faster, more reliable, and secure.
Surfacing validation errors before fulfilment begins
Dashboards showing total order volume often mask the granular failures that prevent a parcel from reaching a locker. We focus on visibility into the specific data transfer between the checkout map and the fulfilment record. The system monitors for postcode validation errors and missing Locker IDs that would otherwise stop a label from being generated. If a customer bypasses the map or the API fails to return a Point ID, the exception is surfaced before the order is released for picking. This early detection stops the compounding cost of manual address correction and reduces the volume of parcels returned to sender. Monitoring the health of the InPost API handshake ensures that out-of-home delivery remains a reliable option rather than a source of customer support tickets.
Managing exception types and locker workflows
Handover focuses on how ecommerce and operations teams manage the locker delivery flow. We train your ecommerce team to monitor the InPost map widget and validate that Locker IDs are correctly populating order records. Warehouse and operations teams learn to recognise the InPost Point ID in the fulfilment queue, ensuring labels are generated for lockers rather than home addresses. Finance teams are shown how to reconcile shipping fees against the locker-specific rates. We provide operational documentation that details who owns exception types, such as when a locker becomes unavailable after an order is placed. This reference is written for the people running the business.
Maintaining uptime and delivery promise reliability
After launch, we monitor the connection between BigCommerce and InPost to catch sync errors before they disrupt the warehouse. Our support model prioritises operational uptime, surfacing issues like API response lag or locker availability drift that could cause friction at checkout. We manage the escalation of technical exceptions, ensuring that if the locker map widget or Point ID validation fails, it is addressed before a backlog forms in fulfilment. This ongoing ownership covers the coordination between BigCommerce shipping zones and InPost's dynamic network, ensuring your delivery promise is supported by accurate data. We focus on preventing the delivery failures that usually trigger high volumes of customer service inquiries.
Common failures
Missing locker Point ID on sales orders
Operational impact: The fulfilment team receives a BigCommerce order with an InPost shipping method but no locker destination ID, only the customer's billing address. These orders cannot be dispatched, forcing the customer service team to manually contact each customer for the correct locker details. This delays hundreds or thousands of orders, skews fulfilment KPIs, and creates a poor customer experience.
Prevention / Action: The integration must write the InPost Point ID to a persistent and clearly designated custom field on the BigCommerce Order object during checkout. The pre-fulfilment workflow should include a validation step that blocks orders from release to the warehouse or label service if this custom field is empty. An exception queue should be used to hold these orders for immediate operational review.
Invalid customer phone number format
Operational impact: InPost APIs require a valid mobile number to create a shipment and send collection notifications to the customer. If the phone number on the BigCommerce customer record is missing, a landline, or incorrectly formatted, the API will reject the shipment request. This results in failed label generation, creating a backlog of unfulfillable orders that the operations team must manually investigate and resolve.
Prevention / Action: Implement strict front-end validation on the phone number field in the BigCommerce checkout for all InPost deliveries. The integration should enforce rules that align with valid mobile formats (e.g. UK numbers) and make the field mandatory. The checkout process must return a clear error message that helps the user correct the input before the order is confirmed.
Oversized products offered for locker delivery
Operational impact: When SKUs are not tagged with accurate dimension and weight data, the checkout fails to filter out products that are too large or heavy for InPost lockers. The fulfilment team only discovers the issue when packing the Sales Order, making the generated label useless. This requires the CX team to contact the customer, arrange new delivery, cancel the original order item, and process a partial refund, disrupting both finance and warehouse operations.
Prevention / Action: Establish the BigCommerce product catalogue as the source of truth for SKU-level dimension and weight data. The integration logic connecting to the InPost shipping provider must filter eligibility dynamically at the cart or checkout stage. This ensures the locker option is only displayed when all items in the customer's cart are within the carrier's specified size and weight limits.
Checkout map conflicts and high latency
Operational impact: An improperly implemented InPost locker map widget can inject high latency or create JavaScript conflicts with other BigCommerce checkout functions like address validation or payment gateways. This can cause the checkout page to freeze or fail entirely, leading to a measurable increase in abandoned carts and a direct loss of revenue. The finance and ecommerce teams will see a drop in conversion rate but may struggle to identify the root cause without detailed monitoring.
Prevention / Action: The locker map script should be loaded asynchronously to minimise its impact on the perceived page load time of the main checkout content. A robust test plan must be executed across various devices and connection speeds to identify potential conflicts before deployment. Closely monitor core web vitals, JavaScript errors, and checkout funnel conversion rates immediately after release to isolate and address any negative performance impact.
Frequently asked questions
What happens if the InPost locker ID isn't correctly saved to the BigCommerce order?
If the InPost Locker ID is not passed into a custom field or address line on the BigCommerce sales order, the fulfilment process will fail. Your warehouse team will see an order with an incomplete address, forcing them to pause the shipment and manually contact the customer for the correct details. This delays the order and undermines the convenience of using a locker service.
Could adding the InPost map break our BigCommerce checkout flow?
Yes, this is a valid concern, as the map is often added via a custom script that can conflict with the checkout's default postcode validation. A correctly implemented integration ensures the InPost widget only appears after BigCommerce validates the initial postcode for service eligibility. The chosen locker's details then populate the standard address fields on the order, preventing errors before the customer finalises the purchase.
How can we prevent customers from selecting InPost delivery for oversized items?
This is managed by configuring shipping rules within BigCommerce to exclude certain products from the InPost option. By using logic based on product dimensions, weight, or a shipping profile assigned to specific SKUs, you can ensure InPost is not displayed as a delivery choice for items too large for the lockers. This avoids failed fulfilments and the negative customer experience of having to cancel an order after payment.
Why is the customer's mobile number so critical for InPost shipments from BigCommerce?
The InPost network uses the customer's mobile number to send essential SMS notifications, including the locker opening code. If the phone number on the BigCommerce customer record or sales order is missing, invalid, or a landline, the InPost API typically rejects the request to create a shipment. This causes the order fulfilment to fail, creating manual work for your team to find the correct information from the customer.
How does the chosen InPost locker address get from BigCommerce to our label printing software?
The integration saves the locker's unique ID and address into specific fields on the BigCommerce sales order, typically using the main address lines or a custom metafield. Your label printing or warehouse software must then be configured to read from these exact fields during the fulfilment process. A common failure occurs when the shipping system only pulls the customer's billing address, causing the parcel to be misdirected.