I wanted to provide some additional insights on this topic. I stumbled upon this thread, and while the solution brought me close to what I needed, further research eventually led me to the exact solution I was looking for.
Here’s my scenario: I send automated internal marketing emails (via workflow) to my sales team when a web lead submits a form and selects a state within their territory. My sales team had a specific request: they wanted the email notification to include a “Go to Contact Record” button, similar to the Hubspot notifications for contact owner updates. The link formats I initially tried from this thread didn’t quite work, but I finally found a format that worked perfectly and allowed me to integrate it into a button as a URL:
https://app.hubspot.com/contacts/XXXXXXXX/contact/{{ contact.hs_object_id }}
As pointed out by @isabelv4, it’s essential to replace “######” with your Hubspot account ID (You can also find this if you open any contact record and look at the number listed between contacts/######"/record).
Additionally, make sure to use the precise spacing in the link example above and the property’s internal value. I initially formatted it as {{contact.hs_object_id}}, but the absence of spaces on either side of the token value caused it not to function properly.
I know this is relevant for contact properties, and not deals, but thought I’d post anyways in case it can help someone, as this is the thread I found in my search for a solution.