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API and integrations – connect business systems easily

2026-07-23 Michał Grycz
API and integrations – connect business systems easily

In short

What is an API, REST vs GraphQL, integration examples: CRM+newsletter, store+warehouse, ERP+accounting, webhooks. How to connect business systems.

  • First name the problem and the goal.
  • Then outline a simple step-by-step plan.
  • Each step needs an owner and a deadline.
  • Track results — without numbers it stays opinion.

Your CRM, accounting system, store, newsletter and warehouse all work separately. You manually copy data between them? That is wasted time and a source of errors. APIs are the key to connecting everything.

What is an API? 🔗

An API is like a waiter in a restaurant. You tell the waiter what you want, they go to the kitchen, bring your order. REST is the most common API type. GraphQL offers more flexibility by letting you request exactly the data you need.

💡 Pro tip

Before writing custom integration code, check if your systems have ready-made plugins or integrations on their marketplace. A $30 plugin often works better than a week of custom development. Measure cost and time before deciding.

Check our integration services or contact me for integration help.

FAQ

Do I need a programmer for system integrations?

For simple integrations like store→newsletter, no-code tools like Make or Zapier work. Complex ones like ERP→accounting with account mapping need a developer familiar with both APIs.

How I can implement this for you

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