> ## 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.

# Threads

> Threads are the core of Plain's data model. Every customer conversation becomes one.

Threads are the core of Plain's data model and equivalent to tickets or conversations in other support platforms. When you use Plain to help a customer you assign yourself to a thread and then mark the thread as `Done` once you're done helping.

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

Threads are automatically created when a new email is received but can also be [created via the API](/graphql/threads/create) (when a customer submits a contact form for example). If you're migrating from another support provider, you can [import historic threads](/graphql/threads/import) with their original timestamps and conversation history.

Threads have [a status](/product/platform/threads/statuses) and can be assigned to multiple users.

Threads belong to one customer but can contain multiple email threads and customers.

An example thread looks like this:

<Note>
  The below is only showing a subset fields a thread has. Since our API is a GraphQL API you decide
  which fields you need when you make API requests. Use our [API
  explorer](https://app.plain.com/developer/api-explorer) to discover the full schema of threads.
</Note>

<Snippet file="graphql/threads-response.mdx" />