Is there an API for adding a created property to the ‘about this contact’, or an API for adding a created property to default properties?
Hi @avyer,
I hope all is well with you 
Currently, there isn’t a way to add a created property to the about card via API. As for the default properties, these are properties that are created by HubSpot and so it cannot be created via API/within your portal. That said, you can create custom contact properties.
Additonal articles on this:
Select properties to show under the About section in a record
Thank you.
I just wanted to confirm I haven’t overlooked the docs
