# Master data on balancing group integrity — View ÜNB The NB transmits the master data on balancing group integrity to the ÜNB. The ÜNB checks the data and gives the NB a quality response message on the content of the data. If the ÜNB expects different data content, it states this in the response message. In this case the NB informs the ÜNB of the processing status of its response message. ## Process flow from the perspective of the ÜNB \nSystem diagram: Stammdaten zur Bilanzkreistreue — view of ÜNB\n\n\nCustomer backend system\n\nMACO APP · ÜNB\n\nMarket partner\n\n\n\n1. Stammdaten\nBilanzkreistreue\n\nNB\n\nAS4\n55670\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\n2. Rückmeldung auf\nStammdaten\n\n\nNB\n\nAS4\n55671\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n3. Bearbeitungsstand zur\nRückmeldung\n\n\nNB\n\nAS4\n21047\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Stammdaten zur Bilanzkreistreue — view of ÜNB\n\n\nBackend (customer)\n\n\nMACO APP · ÜNB\n\n\nNB\n\n\n1. Stammdaten Bilanzkreistreue\nAS4 · PI 55670\n\nCreate transaction\nCreate process data\n\n2. Rückmeldung auf Stammdaten\nAS4 · PI 55671 · E_0574\nE_0574 — Stammdaten zur Bilanzkreistreue prüfen\n\nUpdate transaction\nUpdate process data\n\n3. Bearbeitungsstand zur Rückmeldung\nAS4 · PI 21047 · E_0616\nE_0616 — Rückmeldung auf Änderung prüfen\n\nUpdate transaction\nUpdate process data\n"} titel="ÜNB" /> ## Process steps ### Master data balancing group integrity
**Check identifiers** - [55670](/en/schnittstellen/202610/pruefi/UTILMD/PI_55670) — Master data BG fidelity · AS4
**Flow**
  1. Message from **NB** · AS4
  2. **Write endpoint** - Transaction created — `ERSTELLEN_PROZESSDATEN` Creates a new transaction in the backend with the data of the incoming message.
### Response message on master data
**Check identifiers** - [55671](/en/schnittstellen/202610/pruefi/UTILMD/PI_55671) — Response message to master data BG fidelity · AS4
**Flow**
  1. Message to **NB** · AS4
    **Response per decision tree** - `55671` → [E_0574](/en/referenz/202610/ebd/E_0574) · ÜNB · Check master data on balancing group integrity
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend once the message has been created.
### Processing status of the response message
**Check identifiers** - [21047](/en/schnittstellen/202610/pruefi/IFTSTA/PI_21047) — Processing status message · AS4
**Flow**
  1. Message from **NB** · AS4
    **Response per decision tree** - `21047` → [E_0616](/en/referenz/202610/ebd/E_0616) · NB · Check response message to the change
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend with the data of the incoming message.
Decision trees of this process | EBD | Name | |---|---| | [E_0574](/referenz/202610/ebd/E_0574) | Check master data on balancing group integrity | | [E_0616](/referenz/202610/ebd/E_0616) | Check response message to the change |
## Process information Wording of the consolidated version, profile ch. 2.1, p. 27.
  1. ### Trigger In the case of the use case „[Billing data balancing group settlement](/en/prozessdoku/202610/UENB/GPKE-Teil2-abrechnungsdaten-bilanzkreisabrechnung)“ it is a market location or tranche - which is mapped with balancing based on quarter-hour values from the initial commissioning of the market location (creation) onwards or - in which a change is made from balancing based on profiles to balancing based on quarter-hour values or - with balancing based on quarter-hour values and master data on balancing group integrity have changed or - in which a change is made from balancing based on quarter-hour values to balancing based on profiles or - with balancing based on quarter-hour values and the market location is decommissioned. **Runs beforehand:** [Billing data for balancing group settlement](/en/prozessdoku/202610/UENB/GPKE-Teil2-abrechnungsdaten-bilanzkreisabrechnung) — these processes name the one shown here in their result.
  2. ### First message **NB** sends “Master data on balancing group integrity” (step 1). From here on, it is the turn of the party involved on this page.
  3. ### Objective The master data on balancing group integrity have been exchanged.
## Other views of the process The same process through the eyes of the other parties involved: the same steps, each read from their point of view. - [View NB](/en/prozessdoku/202610/NB/GPKE-Teil4-stammdaten-zur-bilanzkreistreue) — NB *The steps are the **possible** messages of this process, not a sequence — the source lists neither conditions nor alternatives. The small box on the step names the own view on the left: with **←** it receives, with **→** it sends. Collapsed steps run between other market partners.* The connector table lists no write call for these steps. Derived from the process flow: the process begins for the own role with their message, so the transaction is created. Applies to: [1](#schritt-1) The connector table lists no write call for these steps. Derived from the process flow: the own role was already involved in this process, so the transaction already exists. Applies to: [3](#schritt-3) For this market role there is no write catalog; the step therefore shows only the command of the write call, without address and without button. Applies to: [1](#schritt-1), [2](#schritt-2), [3](#schritt-3)