# BG-2 — Process control

> https://billhorse.com/en/terms/bg-2/

Technical metadata stating which specification (e.g. XRechnung, Factur-X) and business process the invoice follows. Without it, the recipient cannot determine the profile.

## Where does it live in the XML?

- CII: `rsm:ExchangedDocumentContext`

## Contained fields

- [BT-23 — Business process type](https://billhorse.com/en/terms/bt-23/)
- [BT-24 — Specification identifier](https://billhorse.com/en/terms/bt-24/)

## Checked by these rules

- [BR-01 — Specification identifier missing](https://billhorse.com/en/rules/br-01/)