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

# Data handling

> What EDN stores, who can see it, and what happens when you delete.

This page explains what happens to the content your application sends to EDN.

## What EDN stores

| Data | Saved by | What is kept |
| - | - | - |
| **Conversation turns** | [Save a conversation turn](https://docs.tensorpro.ai/api-reference/ingest-round.md) | The user's message and the assistant's reply, as a `ROUND` memory |
| **Facts** | EDN, from the user's messages | Each fact as its own memory, with its provenance and category |
| **AI answers** | [Classify an assistant reply](https://docs.tensorpro.ai/api-reference/infer-round.md), [Save a generated statement](https://docs.tensorpro.ai/api-reference/generated-round.md) | The reply, as an unconfirmed memory |
| **Documents** | [Upload a document](https://docs.tensorpro.ai/api-reference/ingest-document.md) | The text extracted from the file, split into memories. The original file isn't kept |
| **Messages** | [Add a message to a session](https://docs.tensorpro.ai/api-reference/append-session-message.md) | The conversation transcript |
| **Projects and sessions** | Their endpoints | Names, titles and settings |

EDN also keeps records of how it classified each message, so its decisions can
be traced, and a log of account actions, such as deleting a memory.

**API keys** are stored only as a hash. The full key is shown once, when you
create it.

## Who can see your data

All memory, documents, projects and sessions belong to the EDN account that
owns the API key. Every request reads and writes only that account's data. A
request for another account's data returns `404`.

EDN accounts are not divided by your end users. If your application serves
several people, keep their memory apart in your integration. See
[Projects and sessions](https://docs.tensorpro.ai/concepts/projects-and-sessions.md#memory-ownership-and-end-users).

## Deleting data

| Action | What happens |
| - | - |
| [Delete a memory](https://docs.tensorpro.ai/api-reference/delete-memory-record.md) | The memory is no longer used in SIPs, search or lists |
| [Delete a session](https://docs.tensorpro.ai/api-reference/delete-session.md) | The session and its messages are removed from lists and reads. Memory saved during the session is kept |
| [Remove a project document](https://docs.tensorpro.ai/api-reference/remove-project-source.md) | The document and every memory EDN saved from it are no longer used |
| [Delete a project](https://docs.tensorpro.ai/api-reference/delete-project.md) | The project can't be used in requests. Its memories and documents are kept |
| [Delete your account](https://docs.tensorpro.ai/console/privacy-and-data.md#delete-your-account) | After a 30-day grace period, the account and its data are permanently deleted. Only a record that the deletion happened is kept |

Deleted memories, sessions and documents stop being used immediately, but are
not erased right away. To permanently remove everything, delete the account.

## Questions

For questions about your data, contact
[support@tensorpro.ai](mailto:support@tensorpro.ai). See also the
[privacy policy](https://tensorpro.ai/privacy).


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