# Activation of a MaBiS metering point for the daily balancing area aggregate time series from the ÜNB to NB — NB view The ÜNB activates a MaBiS-ZP of a BG-SZR (category C) and sends the corresponding information to the NB. ## Process flow from the perspective of the NB \nSystem diagram: Aktivierung eines MaBiS-Zählpunkts für die tägliche Bilanzierungsgebietssummenzeitreihe vom ÜNB an NB — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\n1. Aktivierung eines\nMaBiS-ZP für die BG-SZR\n(Kategorie C)\n\nÜNB\n\nAS4\n55062\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Aktivierung eines MaBiS-Zählpunkts für die tägliche Bilanzierungsgebietssummenzeitreihe vom ÜNB an NB — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nÜNB\n\n\n1. Aktivierung eines MaBiS-ZP für die BG-SZR (Ka…\nAS4 · PI 55062\n\nCreate transaction\nCreate process data\n"} titel="NB" /> ## Process steps ### Activation of a MaBiS-ZP for the BG-SZR (category C)
**Check identifiers** - [55062](/en/schnittstellen/202604/pruefi/UTILMD/PI_55062) — Activation of ZP · AS4
**Flow**
  1. Message from **ÜNB** · AS4
  2. **Write endpoint** - Transaction created — [Create process data](/en/api/202604/backend-schreiben-nb/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
## Process information Wording of the consolidated version, profile ch. 15.2.1, pp. 209–210.
  1. ### Preconditions The ÜNB has been informed by the NB responsible for the BG about the assignment of the first market location with ÜNB aggregation responsibility, for whose assigned combination of ZRT, voltage level and BG no MaBiS-ZP for the BG-SZR (category C) is activated yet.
  2. ### Results The NB can assign the BG-SZR (category C) to a MaBiS-ZP.
  3. ### First message **ÜNB** sends “Activation of a MaBiS-ZP for the BG-SZR (Category C)” (Step 1). From here on, the party involved on this page takes its turn.
  4. ### Objective The ÜNB has activated the MaBiS-ZP for the corresponding BG-SZR (category C) at the NB.
## 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 ÜNB](/en/prozessdoku/202604/UENB/MaBiS-aktivierung-eines-mabis-zaehlpunkts-fuer-die-taegliche-bilanzierungsgebietssummenzeitreihe-vom-uenb-an-nb) — 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 the check identifiers of these steps there is no test case in the test data set; the »Try it out« button of the write interface therefore offers no body. Applies to: [1](#schritt-1)