> ## 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.

# Exchange Priority

Exchange priority (Börsenvorrang) is a German market mechanism where certain balance groups can impose their schedule values on counterparties. When a counterparty has exchange priority, any anomaly (mismatch) between your submitted values and theirs is resolved in their favor per Bilanzkreisvertrag clause 12.b.

This matters during anomaly reconciliation — series flagged with `has_exchange_priority=true` indicate that the discrepancy can be disregarded because the counterparty's values take precedence.

## Endpoints

The Schedule Management API provides two reference endpoints for exchange priority:

| Endpoint                                            | Purpose                                                          |
| --------------------------------------------------- | ---------------------------------------------------------------- |
| `GET /reference/exchange-priority-balance-groups`   | List all known balance groups that hold exchange priority status |
| `GET /reference/exchange-priority-check/{eic_code}` | Check whether a specific EIC code has exchange priority          |

## When to use

Check exchange priority status when processing anomaly reports. If a counterparty in an external series has exchange priority, the TSO will impose their values regardless of what you submitted — treat the anomaly as informational rather than actionable.