System integration: practical guide to connecting what doesn't talk

If your team retypes information in multiple systems, you have an integration problem.

Signs you need integration

• Same information typed in 2+ places
• Reports requiring manual data merging
• Errors from outdated data between systems
• Team spending too much time on admin tasks

Ways to integrate

Direct API

When systems offer APIs, this is the most robust option. Data flows in real time.

Webhooks

System A notifies System B when something happens. Useful for events (new order, new client).

ETL / Sync

For large data volumes that need periodic consolidation.

Middleware / iPaaS

Platforms like Zapier or Make for simple integrations. For complex ones, custom solutions.

Common pitfalls

1. Integrating without mapping the flow — first understand how information should flow
2. Not handling errors — what happens when an API goes down?
3. Forgetting monitoring — integration needs alerts when something fails

Conclusion

Integration isn't a luxury — it's a necessity. Start with the most critical data flow and expand from there.