Help Center›HubSpot›Which HubSpot properties are updated

Which HubSpot properties are updated

Last updated January 10, 2026

Let's review exactly which properties that OutboundSync is creating or updating based on campaign activity.

Properties will be broken into two main categories in this article: default properties and custom properties. Within that, we will have object-specific properties for companies or contacts.

The purpose of this article is to define the properties themselves.

Default properties

Default contact properties

💡

By default, Contact search is done using the contacts' email address as the unique identifier. If a contact already exists and the fields have values, OutboundSync will not overwrite them. HubSpot's existing values will be left as-is.

Here are the default contact properties that OutboundSync interacts with, including: name, email address, website, and HubSpot owner ID.

OutboundSync webhook property	OutboundSync webhook property notes	HubSpot Property label	HubSpot property internal label	HubSpot property type
`to_email`	from email object	Email	`email`	Single-line text
`to_name` OR `to_email`	if `to_name`is not present then using `to_email`	First Name	`firstname`	Single-line text
`to_name`	if `to_name` is not present then leave blank	Last Name	`lastname`	Single-line text
`domain`	extracted after @ from email object	Website URL	`website`	Single-line text
`webhook owner`	If webhook checkbox "Assign contact owner" is selected then assign the owner, if not, leave blank	Contact owner	`hubspot _owner_id`	Single-line text

Default company properties

💡

If the webhook settings checkbox in OutboundSync has Create or update company Create or company company enabled, then OutboundSync will create or update companies. By default, company search is done using the companies' domain as the unique identifier. If a company already exists, OutboundSync will not overwrite that property. HubSpot's existing values will be left as-is.

Here are the default company properties that OutboundSync interacts with:

OutboundSync webhook property	OutboundSync webhook property notes	HubSpot Property label	HubSpot property internal label	HubSpot property type
`domain`	extracted after @ from email object	Website URL	`website`	Single-line text
`domain`	extracted after @ from email object	Company Domain Name	`domain`	URL

Custom contact properties

💡

OutboundSync requires that the user who creates the webhook has permission to create custom contact properties. Without these permissions, the application cannot perform this action.

OutboundSync also has an option to create custom contact properties. These properties serve to make your campaign data easily available in HubSpot for lists, views, workflows, and more.

In general, it is highly recommended that you enable these properties as they unlock significantly more usability of your outbound data inside of HubSpot.

In order to demonstrate them in a web-friendly format, we are going to break this into sections.

💡

Click here to download a CSV with all the properties.

Property names and types

In this table, you can see the specific webhook event types and corresponding property types in HubSpot.

Property Name	Event Type	Property Type
Last app URL	ALL EVENTS	Single-line text
Last bounce time	EMAIL BOUNCE	Date picker
Last campaign ID	ALL EVENTS	Single-line text
Last campaign name	ALL EVENTS	Single-line text
Last connection status	CONNECTION REQUEST ACCEPTED OR SENT	Single-line text
Last connection status time	CONNECTION REQUEST ACCEPTED OR SENT	Date picker
Last email campaign ID	ALL EMAIL EVENTS	Single-line text
Last email campaign name	ALL EMAIL EVENTS	Single-line text
Last email lead category update ID	LEAD CATEGORY UPDATE	Single-line text
Last email lead category update name	LEAD CATEGORY UPDATE	Single-line text
Last email open message	EMAIL OPEN	Single-line text
Last email open subject	EMAIL OPEN	Single-line text
Last email open time	EMAIL OPEN	Date picker
Last email reply address	EMAIL REPLY	Single-line text
Last email reply message	EMAIL REPLY	Single-line text
Last email reply name	EMAIL REPLY	Single-line text
Last email reply subject	EMAIL REPLY	Single-line text
Last email reply time	EMAIL REPLY	Date picker
Last email sent address	EMAIL SENT	Single-line text
Last email sent message	EMAIL SENT	Single-line text
Last email sent name	EMAIL SENT	Single-line text
Last email sent subject	EMAIL SENT	Single-line text
Last email sent time	EMAIL SENT	Date picker
Last email sequence step	EMAIL SENT	Number
Last email unsubscribe time	LEAD UNSUBSCRIBED	Date picker
Last follow sender	FOLLOW SENT	Single-line text
Last follow time	FOLLOW SENT	Date picker
Last lead category ID	LEAD CATEGORY UPDATE	Single-line text
Last lead category name	LEAD CATEGORY UPDATE	Single-line text
Last like post URL	LIKED POST	Single-line text
Last like sender	LIKED POST	Single-line text
Last like time	LIKED POST	Date picker
Last link click time	EMAIL LINK CLICK	Date picker
Last link click URL	EMAIL LINK CLICK	Single-line text
Last reply social message	MESSAGE REPLY RECEIVED	Single-line text
Last reply social profile	MESSAGE REPLY RECEIVED	Single-line text
Last reply social sender	MESSAGE REPLY RECEIVED	Single-line text
Last reply social time	MESSAGE REPLY RECEIVED	Date picker
Last sent social message	MESSAGE SENT	Single-line text
Last sent social profile	MESSAGE SENT	Single-line text
Last sent social sender	MESSAGE SENT	Single-line text
Last sent social time	MESSAGE SENT	Date picker
Last social campaign ID	ALL SOCIAL EVENTS	Single-line text
Last social campaign name	ALL SOCIAL EVENTS	Single-line text
Last social lead category ID	LEAD CATEGORY UPDATE	Single-line text
Last social lead category name	LEAD CATEGORY UPDATE	Single-line text
Last update occurred	ALL EVENTS	Date picker
Last update source	ALL EVENTS	Single-line text
Last view sender	VIEWED PROFILE	Single-line text
Last view time	VIEWED PROFILE	Date picker
Number of email link clicks	EMAIL LINK CLICK	Number
Number of email opens	EMAIL OPEN	Number

Names and event by platform

Not every property is supported across every Sales Engagement Platform. Limitations may be based on channel- or platform-level limitations.

Property Name	Channel Type	Instantly	Smartlead	EmailBison	HeyReach
Last app URL	EMAIL OR SOCIAL	✅	✅	❌	✅
Last bounce time	EMAIL	✅	✅	✅	❌
Last campaign ID	EMAIL OR SOCIAL	✅	✅	✅	✅
Last campaign name	EMAIL OR SOCIAL	✅	✅	✅	✅
Last connection status	SOCIAL	❌	❌	❌	✅
Last connection status time	SOCIAL	❌	❌	❌	✅
Last email campaign ID	EMAIL	✅	✅	✅	❌
Last email campaign name	EMAIL	✅	✅	✅	❌
Last email lead category update ID	EMAIL	✅	✅	✅	❌
Last email lead category update name	EMAIL	✅	✅	✅	❌
Last email open message	EMAIL	❌	✅	✅	❌
Last email open subject	EMAIL	❌	✅	✅	❌
Last email open time	EMAIL	✅	✅	✅	❌
Last email reply address	EMAIL	✅	✅	✅	❌
Last email reply message	EMAIL	✅	✅	✅	❌
Last email reply name	EMAIL	✅	✅	✅	❌
Last email reply subject	EMAIL	✅	✅	✅	❌
Last email reply time	EMAIL	✅	✅	✅	❌
Last email sent address	EMAIL	✅	✅	✅	❌
Last email sent message	EMAIL	✅	✅	✅	❌
Last email sent name	EMAIL	❌	❌	✅	❌
Last email sent subject	EMAIL	✅	✅	✅	❌
Last email sent time	EMAIL	✅	✅	✅	❌
Last email sequence step	EMAIL	✅	✅	✅	❌
Last email unsubscribe time	EMAIL	✅	✅	✅	❌
Last follow sender	SOCIAL	❌	❌	❌	✅
Last follow time	SOCIAL	❌	❌	❌	✅
Last lead category ID	EMAIL OR SOCIAL	✅	✅	✅	✅
Last lead category name	EMAIL OR SOCIAL	✅	✅	✅	✅
Last like post URL	SOCIAL	❌	❌	❌	✅
Last like sender	SOCIAL	❌	❌	❌	✅
Last like time	SOCIAL	❌	❌	❌	✅
Last link click time	EMAIL	✅	✅	✅	❌
Last link click URL	EMAIL	✅	✅	✅	❌
Last reply social message	SOCIAL	❌	❌	❌	✅
Last reply social profile	SOCIAL	❌	❌	❌	✅
Last reply social sender	SOCIAL	❌	❌	❌	✅
Last reply social time	SOCIAL	❌	❌	❌	✅
Last sent social message	SOCIAL	❌	❌	❌	✅
Last sent social profile	SOCIAL	❌	❌	❌	✅
Last sent social sender	SOCIAL	❌	❌	❌	✅
Last sent social time	SOCIAL	❌	❌	❌	✅
Last social campaign ID	SOCIAL	❌	❌	❌	✅
Last social campaign name	SOCIAL	❌	❌	❌	✅
Last social lead category ID	SOCIAL	❌	❌	❌	✅
Last social lead category name	SOCIAL	❌	❌	❌	✅
Last update occurred	EMAIL OR SOCIAL	✅	✅	✅	✅
Last update source	EMAIL OR SOCIAL	✅	✅	✅	✅
Last view sender	SOCIAL	❌	❌	❌	✅
Last view time	SOCIAL	❌	❌	❌	✅
Number of email link clicks	EMAIL	✅	✅	✅	❌
Number of email opens	EMAIL	✅	✅	✅	❌

Property names and internal labels

The last way to present the custom contact properties is simply looking at the property name and internal label, or unique identifier, that is used inside of HubSpot.

The internal labels are generally referenced for more advanced workflows, including custom API calls, and are not of interest for most users.

Property Name	Internal Label
Last app URL	`os_last_app_url`
Last bounce time	`os_last_bounce_time`
Last campaign ID	`os_last_campaign_id`
Last campaign name	`os_last_campaign_name`
Last connection status	`os_last_connection_status`
Last connection status time	`os_last_connection_status_time`
Last email campaign ID	`os_last_email_campaign_id`
Last email campaign name	`os_last_email_campaign_name`
Last email lead category update ID	`os_last_email_lead_category_id`
Last email lead category update name	`os_last_email_lead_category_name`
Last email open message	`os_last_open_message`
Last email open subject	`os_last_open_subject`
Last email open time	`os_last_open_time`
Last email reply address	`os_last_reply_address`
Last email reply message	`os_last_reply_message`
Last email reply name	`os_last_reply_name`
Last email reply subject	`os_last_reply_message`
Last email reply time	`os_last_reply_time`
Last email sent address	`os_last_sent_address`
Last email sent message	`os_last_sent_message`
Last email sent name	`os_last_sent_name`
Last email sent subject	`os_last_sent_subject`
Last email sent time	`os_last_sent_time`
Last email sequence step	`os_last_email_sequence_step`
Last email unsubscribe time	`os_last_unsubscribe_time`
Last follow sender	`os_last_follow_sender`
Last follow time	`os_last_follow_time`
Last lead category ID	`os_last_lead_category_id`
Last lead category name	`os_last_lead_category_name`
Last like post URL	`os_last_like_post_url`
Last like sender	`os_last_like_sender`
Last like time	`os_last_like_time`
Last link click time	`os_last_link_click_time`
Last link click URL	`os_last_link_click_url`
Last reply social message	`os_last_reply_social_message`
Last reply social profile	`os_last_reply_social_profile`
Last reply social sender	`os_last_reply_social_sender`
Last reply social time	`os_last_reply_social_time`
Last sent social message	`os_last_sent_social_message`
Last sent social profile	`os_last_sent_social_profile`
Last sent social sender	`os_last_sent_social_sender`
Last sent social time	`os_last_sent_social_time`
Last social campaign ID	`os_last_social_campaign_id`
Last social campaign name	`os_last_social_campaign_name`
Last social lead category ID	`os_last_social_lead_category_id`
Last social lead category name	`os_last_social_lead_category_name`
Last update occurred	`os_last_update_occurred`
Last update source	`os_last_update_source`
Last view sender	`os_last_view_sender`
Last view time	`os_last_view_time`
Number of email link clicks	`os_number_of_email_link_clicks`
Number of email opens	`os_number_of_email_opens`

Was this article helpful?

Table of contents

Related articles