note about segment_group_id

src/connections/destinations/catalog/actions-hubspot-cloud/index.md

@@ -122,6 +122,11 @@ Yes. HubSpot will automatically redirect API requests directly to an EU data cen
 ### How do I attribute a custom behavioral event with a user token instead of Email?
 Event payloads should contain an email with either a valid format, empty string, or a `null` value. As a result, the user token takes precedence and is validated in a `Send custom behavioral event` mapping. Segment can't deliver the event to your destination if the email is invalid.
 
+### How can I update companies in HubSpot if they never were associated with a `segment_group_id`? 
+Segment uses the `segment_group_id` field to create and update companies in HubSpot. Records that were created from a pipeline outside of Segment won't have the `segment_group_id` field.  If your companies aren't associated with a `segment_group_id`, you must use another field that uniquely identifies the company in HubSpot, like the `hs_object_id` field, to make updates to your companies.
+
+To use your unique field to update companies, navigate to your Upsert Company mapping and provide the key/value pair assosciated with the `hs_object_id` field in the Company Search fields section. 
+
 ### How can I disable or delete a destination from Segment?
 Follow the instructions in the docs to [disable](/docs/connections/destinations/actions/#disable-a-destination-action) or [delete](/docs/connections/destinations/actions/#delete-a-destination-action) a destination action from Segment.