Sfera for Subiekt GT: what it is and when you need it
What Sfera for Subiekt GT is, whether a store integration needs it, how it differs from direct SQL access, and what to check when it reports errors.
Stock synchronization between an online store and an ERP
How stock synchronization between an online store and Subiekt or another ERP works, why stock levels drift apart, and how to find the cause step by step.
KSeF and integrations with your store and Subiekt
What KSeF is, how it affects store and Subiekt integrations and document workflows, and what to check when a program reports a KSeF connection error.
E-commerce order automation: how it works and where to start
What order automation in an online store involves: the order’s path through the ERP, payment and courier, multichannel sales and the cost.
REST API and webhooks in system integrations
What a REST API is, what a webhook is, when to use one or the other, and what to check when webhooks do not trigger your automation.
Custom software or an off-the-shelf subscription?
SaaS or custom software, freelancer or IT agency, and how the software development process works at a software house: a short guide.
WordPress or a custom website?
WordPress or a custom website for a business, headless CMS or classic WordPress, what to use for a company blog, and what to do when WordPress is too slow.
KCD Guide
KCD Studio guide
Short answers to the questions we hear most often: about Subiekt integrations, selling across several channels, KSeF and choosing technology.
Updated: 7 October 2026
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