# Stacksync
> Stacksync helps your teams access and manipulate CRM and ERP data through your existing databases. It integrates with MotherDuck for loading data from operational systems, APIs, files, or event streams.
## How it works with MotherDuck

Stacksync connects to MotherDuck for two-way sync workflows between MotherDuck and business systems.

## Prerequisites

- A Stacksync workspace.
- A MotherDuck access token.
- Optional: the database name and schema if you do not want to use Stacksync's defaults.

## Setup

1. In MotherDuck, open **Settings** > **General** and create an access token.
2. Copy the generated token.
3. In Stacksync, open **Connections** and select **Create new connection**.
4. Search for and select **MotherDuck**.
5. Paste the token.
6. Update the database name or schema if required, then save the connection.

![Stacksync MotherDuck connection form with token, database, and schema fields](../img/stacksync-motherduck-connection.png)

## Authentication and configuration

- Use a dedicated MotherDuck token for Stacksync.
- Configure the database and schema fields when your sync should not use the defaults.
- Revoke or rotate the token from MotherDuck when the Stacksync connection should no longer have access.

## Important notes

- Stacksync's guide shows MotherDuck token creation from the web UI. If you use service accounts, create the token under the account that should own the sync access.
- Test with a small sync before enabling a production two-way sync.

## Use cases

- Sync operational app data into MotherDuck.
- Use MotherDuck as a source for downstream business applications.
- Keep CRM or ERP data in sync with a MotherDuck-backed analytics workflow.

## Related content

- [View the full Stacksync MotherDuck setup guide](https://docs.stacksync.com/two-way-sync/connectors/motherduck)
- [Loading data into MotherDuck](/key-tasks/loading-data-into-motherduck/)
- [MotherDuck authentication](/key-tasks/authenticating-and-connecting-to-motherduck/authenticating-to-motherduck)


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## Docs feedback

MotherDuck accepts optional user-submitted feedback about this page at `POST https://motherduck.com/docs/api/feedback/agent`.
For agents and automated tools, feedback submission should be user-confirmed before sending.

Payload:

```json
{
  "page_path": "/integrations/ingestion/stacksync/",
  "page_title": "Stacksync",
  "text": "<the user's feedback, max 2000 characters>",
  "source": "<optional identifier for your interface, for example 'claude.ai' or 'chatgpt'>"
}
```

`page_path` and `text` are required; `page_title` and `source` are optional. Responses: `200 {"feedback_id": "<uuid>"}`, `400` for malformed payloads, and `429` when rate-limited.