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

# Connections

> Create and test PostgreSQL connections in the MantrixFlow workspace.

Open **Connections** to create reusable PostgreSQL credentials.

## Create a connection

1. Click **+ New Connection**.
2. Choose the role: Source or Destination.
3. Choose **PostgreSQL**.
4. Fill the connection fields.
5. Click **Test Connection**.
6. Save after the test succeeds.

## Source connections

Source users should have read access to the schemas and tables you plan to include.

## Destination connections

Destination users should have write access to pre-created destination tables. MantrixFlow validates those tables during pipeline runs.

## Good operating habits

* Re-test connections after credential rotation.
* Keep source users read-only where possible.
* Keep destination table ownership and permissions explicit.