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

# ReplyToDocumentComment

> Reply in a comment thread on a document, or post a new comment in the document's Discussion panel, on behalf of the user. Only use this when explicitly asked to reply to or comment on a document. Thread ids come from the comments ReadContent returns. Cannot start a new inline comment on selected text.

# ReplyToDocumentComment

Reply in a comment thread on a document, or post a new comment in the document's Discussion panel, on behalf of the user. Only use this when explicitly asked to reply to or comment on a document. Thread ids come from the comments ReadContent returns. Cannot start a new inline comment on selected text.

## Parameters

| Parameter    | Type   | Required | Description                                                                                                                                |
| ------------ | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `documentId` | string | Yes      | The id of the document the comment is on.                                                                                                  |
| `content`    | string | Yes      | Comment content in macro markdown format. This uses the same syntax as markdown documents.                                                 |
| `threadId`   | string | No       | The id of the inline or Discussion thread to reply in, from ReadContent. Omit to post a new Discussion comment on the document as a whole. |