> ## Documentation Index
> Fetch the complete documentation index at: https://www.plain.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Threads

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

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.

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](https://plain.support.site/article/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" />