You've used 10 out of 10 custom properties. Unlock the ability to create more custom properties with

Who do I need to speak with to get this increased?

Or moved to our dev account correctly?

Hi @AI9,

It is not so mich that you need to speak to anyone, you simply hit the limit within your current subscription and would have to upgrade to a higher subscription with higher limits. You can do so self service by following the steps in-app or via the HubSpot pricing pages. You can of course also talk to HubSpot sales via the pricing page.

You can find limits for each subscription here: https://legal.hubspot.com/hubspot-product-and-services-catalog

Best regards!