# Prescium
> AI operating system for DTC commerce teams.

## Docs
- [Billing: Plans & Pricing](https://docs.prescium.com/billing/pricing): MarginEngine pricing tiers and what's included.
- [Features: Briefings](https://docs.prescium.com/features/briefing): Your AI business partner speaks first. Here's how to read what it says.
- [Features: Fog](https://docs.prescium.com/features/fog): Why some numbers appear as 'hidden' and how to clear them.
- [Features: Receipts](https://docs.prescium.com/features/receipts): How to verify any number MarginEngine shows you.
- [Features: Signals](https://docs.prescium.com/features/signals): How MarginEngine detects and surfaces money-relevant patterns in your data.
- [Getting Started: Your First Briefing](https://docs.prescium.com/getting-started/first-briefing): Understand what MarginEngine shows you on day one — and what it can't see yet.
- [Getting Started: Install MarginEngine](https://docs.prescium.com/getting-started/install): Connect your Shopify store and get your first Briefing in under 5 minutes.
- [Getting Started: Set Up Product Costs](https://docs.prescium.com/getting-started/product-costs): Add your costs to unlock gross margin, Real Profit, and margin Signals.
- [Integrations: Shopify](https://docs.prescium.com/integrations/shopify): How MarginEngine syncs with your Shopify store.
- [Reference: Glossary](https://docs.prescium.com/reference/glossary): Common Prescium terms used across docs, runtime, and receipts.
- [Reference: P&L Calculation](https://docs.prescium.com/reference/pl-definition): Exactly how MarginEngine calculates Real Profit — the full formula.