About

Who it's for

RevOps and IT operators who have to choose, run or fix integration tools, and the data engineers who build them. If you've ever seen a sync work in the demo and break on real data, this is written for you.

What you'll find here

• Guides that start from the vendors' own documentation, then say what it leaves out.
• Comparisons of the ways to connect two systems, with the trade-offs stated plainly.
• Where syncs break in practice, and how to prevent it.
• Original data, when there is a number to back the claim.

The full list is in the articles.

How every article is checked

Every claim about a product traces to a primary source: the vendor's documentation, an API reference or a neutral reference. The link sits next to the claim, so you can check it yourself. When something can't be verified, the article says so instead of guessing. Products change, so each article shows when it was last updated, and corrections are made in the article itself.

No vendor pays for coverage

The Upsert is a personal project with no commercial relationship with any vendor it covers, and every product is judged by the same standard. If that ever changes, through an affiliate link, a sponsorship or a client, it will be disclosed in the article it affects.

Who writes it

I'm Leonardo Quisbert Parra. I've worked at startups in the data-sync space, managed several CRMs, built RevOps workflows and developed CRM integrations alongside data engineers. The Upsert is my personal side project, and I write it myself.

Get in touch

Corrections and questions are welcome at hello@theupsert.com. You can also find me on LinkedIn and X.