API & integrations (payments, ERP, shipping, e-invoice) services
Work whose scope and starting price are set by the experts.
API integrations that connect your site or app to payment systems, ERP software, carriers and e-invoice services, removing repetitive manual work.
I write product, price and stock integration scripts using XML and APIs
Professional API Development | Payment Systems, ERP and Software Integrations
Payment, ERP, CRM, SMS and third-party API integration (C# / Node.js)
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Frequently asked questions
Do I need documentation from the other system?
Yes. Work cannot start without the API documentation and a test account for the system being connected. State which system you use and whether you already have access.
How long does an integration take?
A simple one-way order transfer is quick, while two-way sync of stock, prices and orders takes longer. The quality of the other system’s documentation also matters.
Will the integration break if the other system changes?
It can, since services may update their APIs. It is wise to agree on error reporting and a fix process after the integration is live.
How can I follow errors?
A good integration logs failed calls and notifies you when needed. Say in your brief that you want error logs and alerts.