What are audience profile fields in Letterhead?

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You can use profile fields in Letterhead to store detailed information about your audience members to better understand and engage with them. Currently, we find that this data is primarily used for audience segmentation, and you can store birthdays, address, and member status, for those who have paid subscriptions, for example.

Profile fields give you control over your audience member data, and the fields can be updated via our API, csv upload, zapier integration, and directly in Letterhead.

Please Note: TEXT fields have a 180 character limit, except the Notes field, which accepts up to 2500.

Please refer to the table below for all the fields we currently have available:

Field Name (label)	Description	Accepted Data Type	Key	Example
First name	Your audience member’s first or given name.	TEXT	name	John
Last name	Last name or family name	TEXT	surname	Doe
Email	Your contact’s email address	EMAIL	email	[email protected]
Subscription status	This person’s newsletter subscription status. People who have previously unsubscribed through Letterhead cannot be force-resubscribed in this manner.	PICKLIST	status	Subscribe Unsubscribed
Tags	Use tags to sort your audience members.”,	TEXT	tags	Interests, Groups, Categories
Age	Your audience member’s age	NUMBER	age	30
Birthday	Audience Member’s birthday	DATE_ISO	birthday	1990-01-01
Subscription started date/time	The date and time this person subscribed.	DATETIME_ISO	subscribedTime	2022-10-31T01:30:00.000-05:00
IP Address	The IP address from which the Audience Member subscribed	TEXT	subscribedIP	192.158.1.38
Opt-in date	If different from “Subscription date,” the date the Audience Member opted in to your newsletter, or some other program.”,	DATETIME_ISO	optInTime	2022-10-31T01:30:00.000-05:00
Opt-in IP address	The IP address from which the Audience Member opted-in	TEXT	optInIP	192.158.1.37
Date unsubscribed	The date this person unsubscribed, if applicable	TEXT	unsubscribeIP	2023-08-01
Last contacted	Date you last contacted this person	DATETIME_ISO	lastContact	2022-10-31T01:30:00.000-05:00
Member status	A value of your choice to help identify whether this person is a member of a specific program	TEXT	memberStatus	Training and Development
Member status last modified	The date and time that Member Status was last changed	DATETIME_ISO	memberStatusChangedDate	2022-10-31T01:30:00.000-05:00
Subscriber Status	The Audience Members subscriber status	TEXT	subscriberStatus	Active
Subscriber Status last change date	The date the Audience Member’s Subscriber status was last changed	DATETIME_ISO	subscriberStatusChangedDate	2022-10-31T01:30:00.000-05:00
Delivery Preference	A Audience Members delivery preference	TEXT	deliveryPreference	email
Referral Status	Audience Member’s referral status	TEXT	referralStatus	Referred
Referral Source	The source from which a Audience Member was referred	TEXT	referralSource	LinkedIn, Email
Referred By - Email	Email address of who referred this Audience Member	TEXT	referredByEmail	[email protected]
Referred By - First Name	First name of who referred this Audience Member	TEXT	referredByFirstName	Jane
Referred By - Last Name	Last name of who referred this Audience Member	TEXT	referredByLastName	Doe
Events	Events associated to this Audience Member	TEXT	events	Convention
Last Event Date	Date of last recorded event for this Audience Member	TEXT	lastEventDate	2022-11-10
Purchases	Purchases associated with this Audience Member	TEXT	purchase
Last Purchase Date	The date of the Audience Member’s last recorded purchase	DATETIME_ISO	lastPurchaseDate	2022-10-31T01:30:00.000-05:00
Notes	Notes about the Audience Member	TEXT	notes
Custom Behavior 1	A custom behavior field that you may set for the Audience Member	TEXT	customBehavior1
Custom Behavior 2	A second custom behavior field that you may set for the Audience Member	TEXT	customBehavior2
Custom Behavior 3	A third custom behavior field that you may set for the Audience Member	TEXT	customBehavior3
Custom Behavior 4	A fourth custom behavior field that you may set for the Audience Member	TEXT	customBehavior4
Content Topics	Content topics associated with this Audience Member	TEXT	contentTopics
Most Engaged Topics	Most engaged topics associated to the Audience Member	TEXT	mostEngagedTopics
Most Engaged Sources	Most engaged content sources associated to this Audience Member	TEXT	mostEngagedSources
Last Newsletter Delivered	Last newsletter campaign delivered to this Audience Member	TEXT	lastCampaignDelivered	2022-10-31
Last Campaign Opened	Title of last campaign opened	TEXT	lastCampaignOpened	2022-10-31
Last Link Clicked	URL of the last clicked link	URL	lastLinkClicked	www.tryletterhead.com
Gender	Audience Member’s gender	TEXT	gender	Female, Mal, Prefer not to specify
Race	Audience Member’s race	TEXT	race	White, Hispanic, Asian, Prefer not to specify
Ethnicity	Audience Member’s ethnicity	TEXT	ethnicity	Middle Eastern, Hispanic, Irish, Native American, Jewish, Pacific Islander, etc.
Sexual Orientation	Audience Member’s sexual orientation	TEXT	sexualOrientation	Heterosexual, bisexual, etc.
Marital Status	Audience Member’s marital status	TEXT	maritalStatus	Single, married, widowed, divorced, and separated
Income	Audience Member’s income	NUMBER	income	$10,000
CRM ID	The ID for the Audience Member	TEXT	CRMID	OPH14FRE
Custom ID 1	The ID for the Audience Member	TEXT	customID1	OPH15FRE
Custom ID 2	A second custom ID field for this Audience Member	TEXT	customID2	OPH16FRE
Custom ID 3	A third custom ID field for this Audience Member	TEXT	customID3	OPH17FRE
Custom ID 4	A fourth custom ID field for this Audience Member	TEXT	customID4	OPH18FRE
Language	Language associated with this Audience Member	TEXT	language	English, Spanish, Mandarin, etc.
Address - Line 1	addressLine1	TEXT	First line of Audience Member’s street address “	1234 Letterhead Ln
Address - Line 2	addressLine2	TEXT	Second line of Audience Member’s street address “	Apt. 64
Address - City	The City of this Audience Member’s address	TEXT	city	Miami
Address - State or Province	State/Province of the Audience Member’s street address	TEXT	stateProvince	FL
Address - Postal Code	Postal code of the Audience Member’s address	TEXT	postalCode	30535
Address - Country	Country of the Audience Member’s address	TEXT	country	United States
Latitude	Audience Member’s latitude	NUMBER	latitude	25.7617° N
Longitude	Audience Member’s longitude	NUMBER	longitude	80.1918° W
Region	Audience Member’s region	TEXT	region
Time Zone	Audience Member’s time zone coded	TEXT	timeZone	EST
Last IP Address	The last IP address associated with the Audience Member	TEXT	lastIPAddress	192.168.123.132
Name - Honorific	The honorific for this Audience Member’s name	TEXT	honorific	Mr, Dr, Captain, General, Father and etc.
Name - Suffix	The suffix of the Audience Member’s name	TEXT	suffix	Jr, II
Pronouns	Audience Member’s pronouns	TEXT	pronouns	He/Him, She/Her, They/Them
Home Phone	Audience Member’s home phone, including country code	PHONE_NUMBER	homePhone	13055556666
Work Phone	Audience Member’s work phone, including country code	PHONE_NUMBER	workPhone	13055556666
Mobile Phone”	Audience Member’s mobile phone, including country code	TEXT	mobilePhone	13055556666
Job Title	Audience Member’s job title	TEXT	jobTitle	Marketing Manager, Administrative Assistant, Software Engineer
Job - Company or Organization Name	The company or organization associated with the Audience Member’s job	TEXT	jobCompanyOrOrganizationName	Letterhead
Education	Audience Member’s education	TEXT	education	Undergrad, Master’s degree
Religion	religion	TEXT	Audience Member’s religion	Catholic
Political Affiliation	Audience Member’s political affiliation	TEXT	politicalAffiliation	Democratic Party
Interests	Audience Member’s interests	TEXT	interests	Writing, Music, Gardening
Children	Audience Member’s children	TEXT	children	Tommy, Gina
Letterhead ID	Audience Member’s Letterhead ID	NUMBER	letterheadID	a79564
Website	Audience Member’s business website URL	URL	website	https://www.tryletterhead.com/
Business Website	Audience Member’s business website URL	URL	businessWebsite
Google	Audience Member’s Google profile name	TEXT	googleProfileName
Twitter	Audience Member’s Twitter profile	TEXT	twitterProfileName
Facebook	Audience Member’s facebook profile	TEXT	facebookProfileName
Instagram	Audience Member’s Instagram profile	TEXT	instagramProfileName
TikTok	Audience Member’s TikTok Profile	TEXT	tikTokProfileName
Website profile	Audience Member’s profile name on your website	TEXT	websiteProfileName
Custom Web Profile 1	A custom web profile for this Audience Member	TEXT	customWebProfile1
Custom Web Profile 2	Second custom web profile for this Audience Member	TEXT	customWebProfile2
Custom Web Profile 3	Third custom web profile for this Audience Member	TEXT	customWebProfile3
Custom Web Profile 4	Fourth custom web profile for this Audience Member	TEXT	customWebProfile4

Field Name (label)	Description	Accepted Data Type	Key	Example
First name	Your audience member’s first or given name.	TEXT	name	John
Last name	Last name or family name	TEXT	surname	Doe
Email	Your contact’s email address	EMAIL	email	[email protected]
Subscription status	This person’s newsletter subscription status. People who have previously unsubscribed through Letterhead cannot be force-resubscribed in this manner.	PICKLIST	status	Subscribe Unsubscribed
Tags	Use tags to sort your audience members.”,	TEXT	tags	Interests, Groups, Categories
Age	Your audience member’s age	NUMBER	age	30
Birthday	Audience Member’s birthday	DATE_ISO	birthday	1990-01-01
Subscription started date/time	The date and time this person subscribed.	DATETIME_ISO	subscribedTime	2022-10-31T01:30:00.000-05:00
IP Address	The IP address from which the Audience Member subscribed	TEXT	subscribedIP	192.158.1.38
Opt-in date	If different from “Subscription date,” the date the Audience Member opted in to your newsletter, or some other program.”,	DATETIME_ISO	optInTime	2022-10-31T01:30:00.000-05:00
Opt-in IP address	The IP address from which the Audience Member opted-in	TEXT	optInIP	192.158.1.37
Date unsubscribed	The date this person unsubscribed, if applicable	TEXT	unsubscribeIP	2023-08-01
Last contacted	Date you last contacted this person	DATETIME_ISO	lastContact	2022-10-31T01:30:00.000-05:00
Member status	A value of your choice to help identify whether this person is a member of a specific program	TEXT	memberStatus	Training and Development
Member status last modified	The date and time that Member Status was last changed	DATETIME_ISO	memberStatusChangedDate	2022-10-31T01:30:00.000-05:00
Subscriber Status	The Audience Members subscriber status	TEXT	subscriberStatus	Active
Subscriber Status last change date	The date the Audience Member’s Subscriber status was last changed	DATETIME_ISO	subscriberStatusChangedDate	2022-10-31T01:30:00.000-05:00
Delivery Preference	A Audience Members delivery preference	TEXT	deliveryPreference	email
Referral Status	Audience Member’s referral status	TEXT	referralStatus	Referred
Referral Source	The source from which a Audience Member was referred	TEXT	referralSource	LinkedIn, Email
Referred By - Email	Email address of who referred this Audience Member	TEXT	referredByEmail	[email protected]
Referred By - First Name	First name of who referred this Audience Member	TEXT	referredByFirstName	Jane
Referred By - Last Name	Last name of who referred this Audience Member	TEXT	referredByLastName	Doe
Events	Events associated to this Audience Member	TEXT	events	Convention
Last Event Date	Date of last recorded event for this Audience Member	TEXT	lastEventDate	2022-11-10
Purchases	Purchases associated with this Audience Member	TEXT	purchase
Last Purchase Date	The date of the Audience Member’s last recorded purchase	DATETIME_ISO	lastPurchaseDate	2022-10-31T01:30:00.000-05:00
Notes	Notes about the Audience Member	TEXT	notes
Custom Behavior 1	A custom behavior field that you may set for the Audience Member	TEXT	customBehavior1
Custom Behavior 2	A second custom behavior field that you may set for the Audience Member	TEXT	customBehavior2
Custom Behavior 3	A third custom behavior field that you may set for the Audience Member	TEXT	customBehavior3
Custom Behavior 4	A fourth custom behavior field that you may set for the Audience Member	TEXT	customBehavior4
Content Topics	Content topics associated with this Audience Member	TEXT	contentTopics
Most Engaged Topics	Most engaged topics associated to the Audience Member	TEXT	mostEngagedTopics
Most Engaged Sources	Most engaged content sources associated to this Audience Member	TEXT	mostEngagedSources
Last Delivery Date	Last delivery date	DATETIME_ISO	lastDeliveryDate	2022-10-31T01:30:00.000-05:00
Last Newsletter Delivered	Last newsletter campaign delivered to this Audience Member	TEXT	lastCampaignDelivered	2022-10-31
Last Campaign Opened	Title of last campaign opened	TEXT	lastCampaignOpened	2022-10-31
Last Link Clicked	URL of the last clicked link	URL	lastLinkClicked	www.tryletterhead.com
Gender	Audience Member’s gender	TEXT	gender	Female, Mal, Prefer not to specify
Race	Audience Member’s race	TEXT	race	White, Hispanic, Asian, Prefer not to specify
Ethnicity	Audience Member’s ethnicity	TEXT	ethnicity	Middle Eastern, Hispanic, Irish, Native American, Jewish, Pacific Islander, etc.
Sexual Orientation	Audience Member’s sexual orientation	TEXT	sexualOrientation	Heterosexual, bisexual, etc.
Marital Status	Audience Member’s marital status	TEXT	maritalStatus	Single, married, widowed, divorced, and separated
Income	Audience Member’s income	NUMBER	income	$10,000
CRM ID	The ID for the Audience Member	TEXT	CRMID	OPH14FRE
Custom ID 1	The ID for the Audience Member	TEXT	customID1	OPH15FRE
Custom ID 2	A second custom ID field for this Audience Member	TEXT	customID2	OPH16FRE
Custom ID 3	A third custom ID field for this Audience Member	TEXT	customID3	OPH17FRE
Custom ID 4	A fourth custom ID field for this Audience Member	TEXT	customID4	OPH18FRE
Language	Language associated with this Audience Member	TEXT	language	English, Spanish, Mandarin, etc.
Address - Line 1	addressLine1	TEXT	First line of Audience Member’s street address “	1234 Letterhead Ln
Address - Line 2	addressLine2	TEXT	Second line of Audience Member’s street address “	Apt. 64
Address - City	The City of this Audience Member’s address	TEXT	city	Miami
Address - State or Province	State/Province of the Audience Member’s street address	TEXT	stateProvince	FL
Address - Postal Code	Postal code of the Audience Member’s address	TEXT	postalCode	30535
Address - Country	Country of the Audience Member’s address	TEXT	country	United States
Latitude	Audience Member’s latitude	NUMBER	latitude	25.7617° N
Longitude	Audience Member’s longitude	NUMBER	longitude	80.1918° W
Region	Audience Member’s region	TEXT	region
Time Zone	Audience Member’s time zone coded	TEXT	timeZone	EST
Last IP Address	The last IP address associated with the Audience Member	TEXT	lastIPAddress	192.168.123.132
Name - Honorific	The honorific for this Audience Member’s name	TEXT	honorific	Mr, Dr, Captain, General, Father and etc.
Name - Suffix	The suffix of the Audience Member’s name	TEXT	suffix	Jr, II
Pronouns	Audience Member’s pronouns	TEXT	pronouns	He/Him, She/Her, They/Them
Home Phone	Audience Member’s home phone, including country code	PHONE_NUMBER	homePhone	13055556666
Work Phone	Audience Member’s work phone, including country code	PHONE_NUMBER	workPhone	13055556666
Mobile Phone”	Audience Member’s mobile phone, including country code	TEXT	mobilePhone	13055556666
Job Title	Audience Member’s job title	TEXT	jobTitle	Marketing Manager, Administrative Assistant, Software Engineer
Job - Company or Organization Name	The company or organization associated with the Audience Member’s job	TEXT	jobCompanyOrOrganizationName	Letterhead
Education	Audience Member’s education	TEXT	education	Undergrad, Master’s degree
Religion	religion	TEXT	Audience Member’s religion	Catholic
Political Affiliation	Audience Member’s political affiliation	TEXT	politicalAffiliation	Democratic Party
Interests	Audience Member’s interests	TEXT	interests	Writing, Music, Gardening
Children	Audience Member’s children	TEXT	children	Tommy, Gina
Letterhead ID	Audience Member’s Letterhead ID	NUMBER	letterheadID	a79564
Website	Audience Member’s business website URL	URL	website	https://www.tryletterhead.com/
Business Website	Audience Member’s business website URL	URL	businessWebsite
Google	Audience Member’s Google profile name	TEXT	googleProfileName
Twitter	Audience Member’s Twitter profile	TEXT	twitterProfileName
Facebook	Audience Member’s facebook profile	TEXT	facebookProfileName
Instagram	Audience Member’s Instagram profile	TEXT	instagramProfileName
TikTok	Audience Member’s TikTok Profile	TEXT	tikTokProfileName
Website profile	Audience Member’s profile name on your website	TEXT	websiteProfileName
Custom Web Profile 1	A custom web profile for this Audience Member	TEXT	customWebProfile1
Custom Web Profile 2	Second custom web profile for this Audience Member	TEXT	customWebProfile2
Custom Web Profile 3	Third custom web profile for this Audience Member	TEXT	customWebProfile3
Custom Web Profile 4	Fourth custom web profile for thisAudience Member	TEXT	customWebProfile4

Note: Can I create my own custom profile fields beyond what’s listed?
Currently, Letterhead does not allow users to create entirely new custom fields beyond the ones provided in the list. However, you can contact our support team at [email protected].

You no longer need to update the “Last Delivery Date” merge tag in your templates or audience profile fields. Our system now automatically handles this field using a built-in fallback, so your templates will continue to work as expected. ](/support/contact-support/)

Still can’t find what you need? Contact support.