Their API has been "in transition" since we started using it - it's the classic "the old version is deprecated and the new version is almost ready" problem. Their old auth is deprecated but some APIs still require it. Also the API was down for 5+ hours recently. https://legacydocs.hubspot.com/docs/overview

Thanks for sharing thoughts. I knew there were updates last year, had one client still using a private key & had to help them move it. I have a new SaaS client who will be connecting their product directly into the API so good to know before I sit down with their CTO. Less of a problem if you are starting fresh? Or no?

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