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

# Welcome to Solya

> Documentation for the Solya fashion retail inventory management platform — data layer, intelligence layer, and API.

Solya is a fashion retail inventory management platform for buyers and merchandisers.
It helps you manage the full inventory lifecycle: pre-season order plans, in-season
restock / rebalance / markdown plans, inventory-risk detection, AI-powered
recommendations, sales forecasting, and alerts.

This documentation is organized around the three layers of the product.

<CardGroup cols={2}>
  <Card title="Data layer" icon="database" href="/en/data-layer/overview">
    Connect your data sources, define how incoming files are interpreted, and
    monitor every ingestion run.
  </Card>

  <Card title="Intelligence layer" icon="brain" href="/en/intelligence-layer/business-center">
    Configure the business rules that guard your plans — the Business Center.
  </Card>

  <Card title="API Reference" icon="code">
    The full REST API — catalog, plans, analytics, and data-platform operations.
    Open the **API Reference** tab in the top navigation.
  </Card>

  <Card title="Open the app" icon="arrow-up-right-from-square" href="https://app.solya.app">
    Go to the Solya web application.
  </Card>
</CardGroup>

## How the layers fit together

<Steps>
  <Step title="Bring your data in (Data layer)">
    Activate the **data sources** you use (POS systems such as Polaris and Kezia,
    or file uploads). Each source is interpreted by an **ingestion spec**, and every
    import is tracked as an **ingestion run**.
  </Step>

  <Step title="Let Solya turn data into decisions">
    Solya computes risks, forecasts and recommendations from your ingested data and
    surfaces them across restock, rebalance, markdown and pre-season plans.
  </Step>

  <Step title="Keep decisions within your policies (Intelligence layer)">
    The **Business Center** lets you define rules that **block** or **warn** when a
    plan would breach a business policy (budget caps, capacity limits, size curves…).
  </Step>
</Steps>

<Note>
  This site is bilingual. Use the language switcher in the top navigation to read
  these guides in **English** or **French**.
</Note>