---
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id: f9ef8301e5362219b619a8e8672d19d64d0739d82a24361493b5c00408f24129
title: Manage Sends to Publication Lists using Email Send Definitions
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/email_send_def_mgmnt.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/email_send_def_mgmnt.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 0b94152c5e354a22b2feede0219a557a1f04aafbb08aeb5acac5c7d25fda159c
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# Manage Sends to Publication Lists using Email Send Definitions

This page contains information about managing subscriptions to and unsubscriptions from publication lists via email send definitions.

## Why Manage Sends to Subscribed and Unsubscribed Recipients on Publication Lists

If you store subscriber information in data extensions, you need to use publication lists in order to facilitate email sends. Using the sample code in this document helps you manage which subscribers do or don't receive messages. The email send definition uses the publication list to conduct the send, and subscribers can subscribe or unsubscribe from the list via email links or a profile center.

## How to Manage Sends to Subscribed and Unsubscribed Recipients on Publication Lists

Use the sample code below as a model for your own call.

### Sample .NET Code

```
public CreateResult[] CreateESD()
{
    EmailSendDefinition esd = new EmailSendDefinition();
    esd.Email = new Email();
    esd.Email.ID = 12345; //The ID of the email I wish to send
    esd.Email.IDSpecified = true;
    esd.CustomerKey = "Example 2"; //Setting the customer/external key of this email send definition
    esd.Name = "Example 2"; //Setting the name of this email send definition
    esd.SendClassification = new SendClassification();
    esd.SendClassification.CustomerKey = "12345"; //This is the customer/external key of my default commercial send classification
    esd.SendDefinitionList = new SendDefinitionList[1];
    esd.SendDefinitionList[0] = new SendDefinitionList();
    esd.SendDefinitionList[0].DataSourceTypeID = DataSourceTypeEnum.CustomObject; //Identifies data extension (CustomObject) as the target
    esd.SendDefinitionList[0].DataSourceTypeIDSpecified = true;
    esd.SendDefinitionList[0].CustomObjectID = RetrieveDXNID("12345"); //Pass the customer/external key of the data extension
    esd.SendDefinitionList[0].List = new List();
    esd.SendDefinitionList[0].List.ID = 12345; //The ID of the publication list to use with this data extension and email send definition
    esd.SendDefinitionList[0].List.IDSpecified = true;
    string status;
    string requestID;
    CreateResult[] results = client.Create(new CreateOptions(), new APIObject[] { esd }, out requestID, out status);
    return results;
}
```

## See Also

- _Salesforce Help_: [Profile Center](https://help.salesforce.com/articleView?id=mktg.mc_es_profile_center.htm)