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

# Financial data aggregation domain

> Enrich transaction data with categories, merchants, and locations through Grand Central unified APIs and Sync Hub

Grand Central financial data aggregation connectors integrate with transaction enrichment vendors so you can give customers clearer insight into their spending. Channels such as the Backbase Engagement Banking Platform interact with these providers through standardized unified APIs and Sync Hub events.

This domain covers transaction data enrichment. Enrichment turns raw transaction narratives into categories, merchants, locations, and counterparties.

Enrichment uses vendor connectors behind a unified API contract. Grand Central delivers the results asynchronously through Sync Hub, not in the HTTP response body.

## Core functionalities

<CardGroup cols={2}>
  <Card title="Transaction categorization" icon="tags">
    Classify transactions using each vendor's native category taxonomy. Grand Central preserves vendor-native categories and does not map them to a single cross-vendor taxonomy.
  </Card>

  <Card title="Merchant and counterparty resolution" icon="store">
    Resolve merchant names, contact details, logos, and counterparties where the vendor supports them.
  </Card>

  <Card title="Location enrichment" icon="location-dot">
    Attach geographic context (city, region, country, and coordinates) when the vendor provides location signals from transaction data.
  </Card>

  <Card title="Event-driven result delivery" icon="tower-broadcast">
    Publish unified outcomes to Sync Hub so multiple downstream consumers can update transaction insights, spending analytics, and customer-facing UI without polling Grand Central.
  </Card>
</CardGroup>

## Use case coverage

### Personal financial management (PFM)

| Feature               | Key capabilities                                                                                       |
| :-------------------- | :----------------------------------------------------------------------------------------------------- |
| **Spending insights** | Group transactions by category and merchant so customers understand where money goes.                  |
| **Search and filter** | Improve transaction search using enriched merchant names and categories instead of raw narrative text. |
| **Budget tracking**   | Feed category-level aggregates into budget and goal features in digital banking apps.                  |

### Customer support

Enriched merchant and location context helps agents when customers dispute or query a transaction.

### Analytics and engagement

| Feature                      | Key capabilities                                                                              |
| :--------------------------- | :-------------------------------------------------------------------------------------------- |
| **Behavioral insights**      | Power segmentation, nudges, and product recommendations from normalized enrichment events.    |
| **Omni-channel consistency** | Deliver the same financial data view across mobile, web, and agent channels through Sync Hub. |

<Info>
  The Grand Central Unified API lets you interact with enrichment providers through standardized interfaces. You integrate once, and you can change the vendor without changing the channel.
</Info>

## Available financial data aggregation connectors

<CardGroup cols={2}>
  <Card title="SaltEdge" icon="chart-line" href="/connectors/financial-data-aggregation/saltedge-transaction-enrichment/overview">
    Multi-step transaction categorization with webhook callback and optional merchant resolution.
  </Card>

  <Card title="Plaid" icon="chart-line" href="/connectors/financial-data-aggregation/plaid-transaction-enrichment/overview">
    Single-call synchronous enrichment through Plaid Enrich with personal finance categories, merchant details, and location in one response.
  </Card>
</CardGroup>

<Note>
  **SaltEdge versus Open Banking:** SaltEdge also appears in Grand Central [Open Banking connectors](/connectors/open-banking/overview) for UK and EU PSD2 compliance. Connectors in this domain use SaltEdge for **data enrichment**. They are separate from PSD2 consent, account information services (AIS), and payment initiation services (PIS) flows under Open Banking.
</Note>

For unified API operations, events, and error mappings, see [API playground](/connectors/reference/unified-api-playground) and each connector's Reference page.