Last updated: September 14, 2021
Original source drill-down 1 and Original source drill-down 2 are two analytics properties included on every contact record. These drill-downs provide more insight on a contact's original source (i.e., the contact's first visit or interaction with your business). Their values depend on the value of the Original source property.
Please note: older HubSpot accounts may have the properties Original source data 1 and Original source data 2 instead, which contain the same information.
When viewing the Original source drill-down 2 property on a record, some values will appear with an information icon to show the internal value. Drill-down property values that don't show an information icon will display the internal value, for example addMessageUser. These internal values should be used when filtering contacts by their Original source drill-down properties. 
If HubSpot is able to identify the visit as coming from a web source, you should expect that contact to have original sources related to typical web sources (for example, Direct traffic or Paid search).
Below are the general drill-down categories and values by Original source:
| Original source | Original source drill-down 1 | Original source drill-down 2 |
| Organic search | Search term (if available) | Search engine site |
| Referrals | Referring website domain | Referring website URL |
| Organic social | Social media site | Campaign name |
| Email marketing | Campaign name | HubSpot email name |
| Paid search | Campaign name | Search term (if available) |
| Paid social | Social media site | Campaign name |
| Direct traffic | Entrance URL | N/A |
| Other campaigns | Campaign name | Source / Medium |
| Offline sources | Offline channel/tool/platform. Examples include: IMPORT, SALES, API, BATCH_UPDATE, CONTACTS_WEB, MOBILE_IOS, SALESFORCE, BOT, EXTENSION, PRESENTATIONS |
Specific offline medium (e.g., BCC_TO_CRM, business-card-scanner, CRM_UI, salesforce-createdby, addMessageUser, addViewer) |
- addMessageUser: the record was likely created by a live chat or email in the conversations tool.
- addViewer: the record was likely created via the documents tool. This will occur when the Require email address to view document switch is turned on for a specific document.
- CRM_UI: the contact was created in HubSpot manually before May 2021.
- User ID: the contact was created in HubSpot manually after May 2021. This value will show the ID of the user who created the contact (e.g., 2931299).
- SIDEKICK: the record was likely created by the HubSpot Sales integration.
- Email integration: the record was likely created by the HubSpot Sales integration or another email integration that is connected to HubSpot.
- BCC_to_CRM: the record was likely created through logging an email with the BCC or forwarding address.
