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

# Schedule Series

A schedule series represents one time series within a schedule version — for example one internal trade between two balance responsible parties, or one production injection.

## Series types

| Type          | Description                                                                                             |
| ------------- | ------------------------------------------------------------------------------------------------------- |
| `internal`    | Trade within the same TSO control area                                                                  |
| `external`    | Cross-border trade between two TSO areas (requires `market_agreement_id`)                               |
| `foreign`     | Cross-border trade where your party is not a direct market participant (requires `market_agreement_id`) |
| `production`  | Own generation injected into the grid                                                                   |
| `consumption` | Own load withdrawn from the grid                                                                        |