# Transmission of the balancing area aggregate time series from ÜNB — BIKO view The ÜNB delivers the BG-SZR (category B) for the time period under consideration to the BIKO. The BIKO forwards the BG-SZR (category B) to the NB, provided it is not to be rejected. ## Process flow from the perspective of the BIKO \nSystem diagram: Übermittlung der Bilanzierungsgebietssummenzeitreihe vom ÜNB — view of BIKO\n\n\nCustomer backend system\n\nMACO APP · BIKO\n\nMarket partner\n\n\n\n1. Übermittlung BG-SZR\n(Kategorie B)\n\nÜNB\n\nAS4\n13003\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\n2. Antwort\n\n\nÜNB\n\nAS4\n21002\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n3. Weiterleitung BG-SZR\n(Kategorie B)\n\n\nNB\n\nAS4\n13003\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung der Bilanzierungsgebietssummenzeitreihe vom ÜNB — view of BIKO\n\n\nBackend (customer)\n\n\nMACO APP · BIKO\n\n\nÜNB\n\n\nNB\n\n\n1. Übermittlung BG-SZR (Kategorie B)\nAS4 · PI 13003\n\nCreate transaction\nCreate process data\n\n2. Antwort\nAS4 · PI 21002 · E_0036\nE_0036 — Bilanzierungsgebietssummenzeitreihe (Kategorie B) prüfen\n\nUpdate transaction\nUpdate process data\n\n3. Weiterleitung BG-SZR (Kategorie B)\nAS4 · PI 13003\n\nUpdate transaction\nUpdate process data\n"} titel="BIKO" /> ## Process steps ### Transmission of BG-SZR (category B)
**Check identifiers** - [13003](/en/schnittstellen/202610/pruefi/MSCONS/PI_13003) — Aggregated time series · AS4
**Flow**
  1. Message from **ÜNB** · AS4
  2. **Write endpoint** - Transaction created — `ERSTELLEN_PROZESSDATEN` Creates a new transaction in the backend with the data of the incoming message.
### Response
**Check identifiers** - [21002](/en/schnittstellen/202610/pruefi/IFTSTA/PI_21002) — Refusal · AS4
**Flow**
  1. Message to **ÜNB** · AS4
    **Response per decision tree** - `21002` → [E_0036](/en/referenz/202610/ebd/E_0036) · BIKO · Check balancing area aggregate time series (category B)
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend once the message has been created.
### Forwarding of BG-SZR (category B)
**Check identifiers** - [13003](/en/schnittstellen/202610/pruefi/MSCONS/PI_13003) — Aggregated time series · AS4
**Flow**
  1. Message to **NB** · AS4
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend once the message has been created.
Decision trees of this process | EBD | Name | |---|---| | [E_0036](/referenz/202610/ebd/E_0036) | Check balancing area aggregate time series (category B) |
## Process information Wording of the consolidated version, profile ch. 9.7.1, p. 112.
  1. ### Preconditions The ÜNB has activated the MaBiS-ZP for the BG-SZR (category B) at the BIKO for the time period under consideration.
  2. ### Results The BIKO can determine the data status (the data status depends on the receipt date of the data at the BIKO).
  3. ### Further requirements Aggregated time series that are received from the BIKO after the clearing deadline of the BKA (excluding KBKA) has expired and whose version differs from the highest version with „billing data“ enter the clearing phase for KBKA and are given the data status „check data“.
  4. ### First message **ÜNB** sends “Transmission BG-SZR (category B)” (step 1). From here on, it is the turn of the party involved on this page.
  5. ### Objective - The BG-SZR (category B) formed by ÜNB is available to BIKO. - The NB has received the BG-SZR (category B) from the BIKO and can check it against its data.
## 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/MaBiS-uebermittlung-der-bilanzierungsgebietssummenzeitreihe-vom-uenb) — NB - [View ÜNB](/en/prozessdoku/202610/UENB/MaBiS-uebermittlung-der-bilanzierungsgebietssummenzeitreihe-vom-uenb) — ÜNB · market role UENB *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) 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)