# Mail Letter DMO

## Object Properties

**Object API Name:** `ssot__MailLetter__dlm`\
**Category:** Unassigned\
**Availability:** Available in 254 and later versions\
**Primary Key Field:** Id

## Relationships

- **ChannelEngagementId** has a FOREIGNKEY relationship with the [Channel Engagement DMO](/docs/data/data-cloud-dmo-mapping/guide/c360dm-si-channelengagementdmo-dmo.md) `Id` field.

## Fields

- [cdp_sys_record_currency](#cdp_sys_record_currency)
- [ChannelEngagementId](#channelengagementid)
- [DataSourceId](#datasourceid)
- [DataSourceObjectId](#datasourceobjectid)
- [DeliveryAddressCityName](#deliveryaddresscityname)
- [DeliveryAddressPostalCode](#deliveryaddresspostalcode)
- [Id](#id)
- [InternalOrganizationId](#internalorganizationid)
- [KQ_ChannelEngagementId](#kq_channelengagementid)
- [KQ_Id](#kq_id)
- [MessageText](#messagetext)
- [PostmarkDate](#postmarkdate)

### cdp_sys_record_currency

- **Field API Name:** `ssot__cdp_sys_record_currency__c`
- **Data Type:** TEXT
- **Description:** System-generated metadata field that stores a 3-letter ISO currency code.

### ChannelEngagementId

- **Field API Name:** `ssot__ChannelEngagementId__c`
- **Data Type:** TEXT
- **Description:** The channel engagement associated with the mail letter.

### DataSourceId

- **Field API Name:** `ssot__DataSourceId__c`
- **Data Type:** TEXT
- **Description:** A unique, system-generated identifier for this record.

### DataSourceObjectId

- **Field API Name:** `ssot__DataSourceObjectId__c`
- **Data Type:** TEXT
- **Description:** A unique, system-generated identifier for this record.

### DeliveryAddressCityName

- **Field API Name:** `ssot__DeliveryAddressCityName__c`
- **Data Type:** TEXT
- **Description:** The city of the recipient where the item was delivered.

### DeliveryAddressPostalCode

- **Field API Name:** `ssot__DeliveryAddressPostalCode__c`
- **Data Type:** TEXT
- **Description:** The postal code of the recipient where the item was delivered.

### Id

- **Field API Name:** `ssot__Id__c`
- **Data Type:** TEXT
- **Description:** Required. A unique, system-generated identifier for this MailLetter record. Maximum size is 36 characters.

### InternalOrganizationId

- **Field API Name:** `ssot__InternalOrganizationId__c`
- **Data Type:** TEXT
- **Description:** A unique, system-generated identifier for this record.

### KQ_ChannelEngagementId

- **Field API Name:** `KQ_ChannelEngagementId__c`
- **Data Type:** TEXT
- **Description:** Key Qualifier system field for ChannelEngagementId

### KQ_Id

- **Field API Name:** `KQ_Id__c`
- **Data Type:** TEXT
- **Description:** Key Qualifier system field for Id

### MessageText

- **Field API Name:** `ssot__MessageText__c`
- **Data Type:** TEXT
- **Description:** Free text field that contains the message in the mail message.

### PostmarkDate

- **Field API Name:** `ssot__PostmarkDate__c`
- **Data Type:** DATEONLY
- **Description:** The date when the item was delivered into the care of the postal system.