> ## Documentation Index
> Fetch the complete documentation index at: https://plain-docs-orca-916-agent-docs-restructure.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Delete customers

> Permanently delete a customer and their threads with the deleteCustomer mutation.

You can delete customers with the `deleteCustomer` API.

<Snippet file="graphql/sdk-note.mdx" />

To delete a customer you will need the customer's ID from within Plain. You can get this ID in the UI by going to a thread from that customer and pressing the 'Copy ID' button from the customer details panel on the right, or via our [fetch API](/graphql/customers/get).

Deleting a customer will trigger an asynchronous process which causes all data (such as threads) associated with that customer to be deleted.

This operation requires the following permissions:

* `customer:delete`

<Snippet file="graphql/delete-customer.mdx" />