It would be great to associate Activities with Custom Objects. For example, if we send an email to a contact associated with a custom object - we aren’t able to view within a custom object which emails have been sent to individuals associated with the project. We can do this for Standard Objects. It would be incredibly helpful to do this with custom objects.
Adding link to another idea around the same subject: Control timeline activity associations to associated objects (contacts/ companies/ tickets/ deals)
We use custom objects as parent and grandparent and great-grandparent organisations so being able to see the activity of contacts as a single entity or as a collective across a whole organisation would be incredibly useful. At the moment, we can manually associate conversations, activities etc across these, but having the ability for this to happen across custom objects too would be great.
Also, if custom objects could be switched to act like companies would be helpful. i.e. so company insights pulled into a custom object, domains could be used to stop duplications.
We work with multi-level organisations so this is essential.
We created a custom object called Lead. We did this because even though HubSpot has a lead “property” it is on the HubSpot Contact record which is not sufficient. We would like the ability to have our custom Lead object activities (e.g. email) automatically appear on the Company record that the lead corresponds to without requiring a manual “association” step which is easily forgotten by the end user.
In the same way that an email sent to a Contact (from the standard HubSpot Contact record) is by default also logged on the Company record, so too should an email sent from our custom Lead object record also be automatically associated with the Company record.
We too, as the prior responder, see this functionality as essential for any HubSpot customer working with medium to large enterprises. In these cases leads should not be viewed as being tied to individuals, they should be viewed as opportunities to solve problems and transact business with a Company. As such, those activities should be associated with the Company by default so they are not forgotten or lost.
We use ‘Contracts’ as a Custom Object for Companies that have multiple contracts and projects running concurrently. It would be great to be able to see the Custom Objects in the Associations drop down list in GMail.
This feature is long overdue. Is there any intention to make this happen sometime soon?
We have a “household” custom object and want to see activity from any contact associated with the household on the Household record.
This is a big problem when we have Partner custom objects, we are unable to have visibility on the activities, this is essential functionality!
Same here! This is a big problem for us as we use Custom Object to track member activity ! We would love to associate this with the marketing emails they receive.
This is an issue for us especially on the Android app. I may be wrong, but it works fine on desktop?
This is a problem for us right now because we need to use a custom object to avoid deduplications in the company object since we work with franchises with multiple locations, so managing and avoiding duplicate records is just impossible in the company object and we need to report ALOT on activities, however this and many other functionalities such as calling are missing from custom objects, I’d love to see this figured out ASAP, custom objects should be able to operate to the same capacity as a default object
we use this to create projects as they have several parts that we want to have managed from a single pain of glass. Not being able to sync the notes/activites from the tickets to the project is making Hubspot really hard to use for our futurestate
we now have to log activies manully associated with custom objects, it create so many maunal work and complait from users.
Yes, this is a very much required feature for us. Right now it is super manual
This would be a huge win for a lot of people. It seems like basic functionality that is missing from the platform, especially when logging emails and meetings from the google integration. The activity is already being logged to the contact record, it shouldn’t be hard to port that over to an associated custom object.
I think it’s here 
HubSpot Beta
Super exciting that we can control default association behavior inside of HubSpot. However, what we really need is the ability to control that logic within the Outlook Sales extension for custom objects. Hopeful that that will be addressed soon!
This is basic. It would be a huge improvement on the team’s UI experience. Also, on the measurement of the team’s performance. Being blind to emails being sent is not ideal. Thank you.
Hi everyone,
Thank you for your feedback on this idea. Sales extensions in Gmail and Outlook should now support activity auto association and the ability to associate emails to custom objects as of late 2025. If you have any outstanding use cases, please open a new Idea. Thank you all!