---
sidebar_label: 'Overview'
sidebar_position: 1
---

# Handling deals

This section describes the full deal lifecycle when integrating an external loyalty system with Future Ordering.

1. Reserve a deal when `reservation_required` is received.
2. Fulfill and update discounts when `fulfillment_required` is received.
3. Capture or annul deals after order placement.

```mermaid
flowchart LR
    A[reservation_required] --> B[Create deal]
    B --> C[Reserve deal]
    C --> D[fulfillment_required]
    D --> E[Update deal and discounts]
    E --> F{Order placement}
    F -->|Success| G[capture_requested]
    F -->|Failure| H[annulment_requested]
```

## In this section

1. [Reserving a deal](./reserving-a-deal.md)
2. [Fulfilling a deal](./fulfilling-a-deal.md)
3. [Post-order deal handling](./post-order-deal-handling.md)