> For the complete documentation index, see [llms.txt](https://docs.3dolphins.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.3dolphins.ai/5.1.x/sales-activity/deal/detail-deal/note.md).

# Note

Notes on the deal detail page allow you to type any text you want to add to the deal. For example, when a product category or unit does not match, you can add a note to provide information that the entered category or unit does not match, or perhaps when the product price rises, you can add a note to provide information about price changes.

Besides being able to add notes manually, you can also add notes via an attached file with the file format .txt, .doc, .xls. or you can supplement the notes by including a picture or video.

![Add Note](/files/-MTo22iAIj_X6AyBkgcT)

The notes that have been successfully added will be entered on the **Timeline** tab and in this tab you can edit or delete notes that have been previously added.

![Timeline Tab](/files/-MTo2WhSE825zKj6jjN_)


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