List of OutboundSync's custom fields in Salesforce
When OutboundSync is connected to your Salesforce instance, we have the option to create a group of custom fields on both the Lead and Contact objects. These fields allow you to track engagement activity and sync details from your outbound email sequencer (such as Smartlead, Instantly, or EmailBison).
These custom fields are helpful for:
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Reporting on outbound activity.
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Triggering automation in Salesforce flows.
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Building lead and contact list views.
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Understanding campaign attribution and engagement history.
Below is a list of all custom fields OutboundSync can create, including their API names and data types.
OutboundSync Custom Fields for Leads & Contacts
| Field Label | API Name | Data Type | Description |
|---|---|---|---|
| Last App URL | OSLastAppUrl__c |
Text (255) | The URL of the outbound app or Smartlead sequence that last updated this record. |
| Last Bounce Time | OSLastBounceTime__c |
Date/Time | The time when the last email to this record bounced. |
| Last Campaign ID | OSLastCampaignId__c |
Text (255) | The unique ID of the last campaign this contact or lead was part of. |
| Last Campaign Name | OSLastCampaignName__c |
Text (255) | The name of the last outbound campaign associated with this record. |
| Last Category ID | OSLastLeadCategoryId__c |
Text (255) | The internal ID of the last lead category assigned (e.g., positive reply, interested). |
| Last Lead Category Name | OSLastLeadCategoryName__c |
Text (255) | The name of the last lead category (e.g., Interested, Not a Fit, Unsubscribed). |
| Last Link Click Time | OSLastLinkClickTime__c |
Date/Time | The timestamp of the most recent link click from an outbound email. |
| Last Link Click URL | OSLastLinkClickURL__c |
Text (255) | The URL that was most recently clicked by the lead or contact. |
| Last Open Message | OSLastOpenMessage__c |
Long Text Area (32,000) | The body of the most recently opened email. |
| Last Open Subject | OSLastOpenSubject__c |
Text (255) | The subject line of the most recently opened email. |
| Last Open Time | OSLastOpenTime__c |
Date/Time | The timestamp of the most recent email open. |
| Last Reply Address | OSLastReplyAddress__c |
Text (255) | The email address that sent the last reply. |
| Last Reply Message | OSLastReplyMessage__c |
Long Text Area (32,000) | The content of the most recent reply received. |
| Last Reply Name | OSLastReplyName__c |
Text (255) | The sender name of the last reply. |
| Last Reply Subject | OSLastReplySubject__c |
Text (255) | The subject of the email to which the last reply was made. |
| Last Reply Time | OSLastReplyTime__c |
Date/Time | The timestamp of the most recent reply received. |
| Last Sent Address | OSLastSentAddress__c |
Text (255) | The email address used to send the last outbound message. |
| Last Sent Message | OSLastSentMessage__c |
Long Text Area (32,000) | The body content of the last email sent to this record. |
| Last Sent Name | OSLastSentName__c |
Text (255) | The name of the sender for the last sent email. |
| Last Sent Subject | OSLastSentSubject__c |
Text (255) | The subject of the last email sent. |
| Last Sent Time | OSLastSentTime__c |
Date/Time | The timestamp of the last email sent to this lead or contact. |
| Last Unsubscribe Time | OSLastUnsubscribeTime__c |
Date/Time | The time this contact or lead unsubscribed from outbound messaging. |
| Last Update Occurred | OSLastUpdateOccurred__c |
Date/Time | When OutboundSync last updated any of these custom fields. |
| Last Update Source | OSLastUpdateSource__c |
Text (255) | The source system (e.g., Smartlead, Instantly) that triggered the last update. |