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How to Delete Subscribers from Hidden Triggered Send Managed Lists in Marketing Cloud

Fecha de publicación: Nov 4, 2025
Descripción

NOTE: Deleting a subscriber key on the Hidden managed list will delete the subscriber key from all sendable data extensions. Subscriber keys that exist on the hidden managed list & All Subscribers list, count as one contact. Deleting a subscriber key on the managed list will NOT decrease contact count if the subscriber key also exist on ALL SUBSCRIBERS list.

Triggered Sends that do not use a List will use the Triggered Send Managed List. (TSML)


Salesforce V2/V3, which preceded Marketing Cloud Connect, used hidden lists to store Salesforce Subscribers. 

Marketing Cloud Connector for Microsoft Dynamics CRM also uses a Hidden Managed List.

Subscriber keys that exist on the Triggered Send Managed list and also exist on All Subscribers list or All Contacts list count as 1 contact for billing purposes. For example the below would count as 3 distinct contacts for billing:

SubscriberKey/ContactKey  |  SubscriberID/ContactID |  On TSML 
Contact1@salesforce.com  |  1234  | N
Contact1@salesforce.com  |  5678  | Y
Contact2@salesforce.com  | 9012  |  Y
Contact3@salesforce.com  | 3456  | N

Solución

Create a Data Extension

You will first need to follow the documentation below to create a Sendable Data Extension to store these subscribers. You will need only one field named "SubscriberID" (must be a number field type). Ensure your sendable relationship is SubscriberID relates to Subscribers on SubscriberID. If this option is not visible, enable Contact ID Mapping in Contact Builder. 

Create a SQL Query Activity

To delete these subscribers, you must locate the subscribers by subscribertype and obtain their subscriberid values. Find these subscribers within your account by running the below SQL query .
 

select subscriberid from _subscribers 
where subscribertype !='ExactTarget'

Note: ExactTarget subscribers are the subscribers that show up in the "All Subscribers" list. 

If you would like more data on these subscribers, please review this documentation on the data view.

Delete Contacts

Once you have this information in the Data Extension you created, you can delete these subscribers from within Contact Builder.

Considerations

  • Deleting subscriberid on TSML will delete the associated subscriberkey from all sendable DE. Do NOT delete subscribers on TSML that you do not want the associated records related on subscriberkey removed from all sendable DE 
  • The sendable relationship MUST be "SubscriberID relates to Subscribers on SubscriberID". Failure to do so may mean deleting non-Managed List Subscribers.
  • The Contact Delete process is irreversible. Only delete contacts that you know you must delete.
  • The Contact Delete process, while processing, prevents sending to these subscribers. 
Número del artículo de conocimiento

000381035

 
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Salesforce Help | Article