# Box - Add comment to file action
The Add comment to file action adds a comment to a file in Box. You can add plain text comments or tagged messages that include user mentions.
# Input
| Input field | Description |
|---|---|
| File ID | Enter the ID of the file you plan to comment on. |
| Message | Enter the comment text. Required if Tagged message isn't provided. |
| Tagged message | Enter a tagged message that includes @mention. Use the format @[id:username]. Required if Message isn't provided. |
# Output
| Output field | Description |
|---|---|
| Type | Type of object, such as comment. |
| ID | Unique identifier of the comment. |
| Is reply comment | Indicates if the comment is a reply to another comment. |
| Message | The text of the comment. |
| Created by | User who created the comment. |
| Created at | Timestamp when the comment was created. |
| Modified at | Timestamp when the comment was last modified. |
| Item | The file that the comment is associated with. |
Last updated: 10/3/2025, 8:10:59 PM