Custom eCommerce Integration
A storefront is rarely the system that decides whether an order goes well. Stock lives in the ERP, the courier has its own API, finance needs the invoice to match, the marketplace has opinions about feed format, and the customer just wants an accurate delivery date. Integration work is where those systems are made to agree — and where most of the operational pain in e-commerce actually originates.
We build and repair the layer between commerce platforms and everything around them: ERP, PIM, OMS, WMS, 3PL, CRM, marketplaces and EDI partners. The engineering that matters here is unglamorous — idempotency, retries, reconciliation, dead-letter handling — because the failure mode is not a crash. It is two systems quietly disagreeing about stock for three weeks.
- ERP, OMS, WMS and 3PL connectors with retry and reconciliation built in
- Marketplace and EDI feeds: Amazon, eBay, distributors and retail partners
- Near-real-time inventory and price sync instead of nightly batch exports
- Operations dashboards showing what synced, what failed and what needs a human
Establish who owns what
Every field needs one system of record. We document that first, because most integration bugs are not code failures — they are two systems both believing they own the price.
Design for partial failure
Networks fail mid-sync and APIs rate-limit. Connectors are built idempotent, with retries, dead-letter queues and a defined answer to what happens when half a batch succeeded.
Make it observable
Operations get dashboards and alerts in business terms — orders not acknowledged, stock deltas beyond a threshold — rather than a log file only an engineer can read.
Reconcile continuously
Scheduled reconciliation compares both sides and reports drift, so discrepancies surface as a report on Monday morning instead of as an oversold product during a campaign.
What operations teams ask us
Usually yes. We have worked with flat-file drops, SFTP batches, database views and SOAP endpoints old enough to vote. The approach changes — you lean on scheduled sync and reconciliation rather than webhooks — but a legacy ERP is a constraint on latency, not a blocker.
Whichever the business actually needs, per data type. Stock usually wants near-real-time because the cost of being wrong is a stockout or an oversell. Financial postings are often fine nightly. Deciding this per flow rather than globally saves a lot of unnecessary infrastructure.
Yes, and it is a good share of what we do. We start by instrumenting it to find where records actually go missing, which is frequently somewhere other than where the team suspects. Sometimes the fix is small; sometimes the honest answer is that a rewrite is cheaper than continuing to patch it.
Why this work matters more than it looks
Nobody praises an integration layer. They notice it only when stock is wrong, and by then it has already cost a campaign.
We treat integration as a first-class part of the system rather than glue written under deadline: version-controlled, tested against real payloads, monitored, and documented well enough that your team can trace an order end to end without calling us. That is what makes the difference during peak weeks.
Thinking about a project like this?
Tell us what you are building and what is getting in the way. You will get an honest read on scope, approach, and whether we are the right team for it — including when the answer is that you do not need us.
Services that pair well with integration work
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