# Activation of a MaBiS metering point for the supplier aggregated time series from the ÜNB to LF — ÜNB view The ÜNB activates a MaBiS-ZP of an LF-SZR (category B) and sends the corresponding information to the LF. ## Process flow from the perspective of the ÜNB \nSystem diagram: Aktivierung eines MaBiS-Zählpunkts für die Lieferantensummenzeitreihe vom ÜNB an LF — view of ÜNB\n\n\nCustomer backend system\n\nMACO APP · ÜNB\n\nMarket partner\n\n\n\n1. Aktivierung eines\nMaBiS-ZP für die LF-SZR\n(Kategorie B)\n\nLF\n\nAS4\n55062\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Aktivierung eines MaBiS-Zählpunkts für die Lieferantensummenzeitreihe vom ÜNB an LF — view of ÜNB\n\n\nBackend (customer)\n\n\nMACO APP · ÜNB\n\n\nLF\n\n\n1. Aktivierung eines MaBiS-ZP für die LF-SZR (Ka…\nAS4 · PI 55062\n\nUpdate transaction\nUpdate process data\n"} titel="ÜNB" /> ## Process steps ### Activation of a MaBiS-ZP for the LF-SZR (category B)
**Check identifiers** - [55062](/en/schnittstellen/202610/pruefi/UTILMD/PI_55062) — Activation of ZP · AS4
**Flow**
  1. Message to **LF** · AS4
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend once the message has been created.
## Process information Wording of the consolidated version, profile ch. 8.2.1, pp. 89–90.
  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 BK, ZRT, RZ/BG and LF no MaBiS-ZP for the LF-SZR (category B) is activated yet, or - the request from the BKV to set the aggregation level of the BK-SZR (category B) to the level of the RZ to which the LF-SZR (category B) is assigned is available.
  2. ### Results - The LF can assign the LF-SZR (category B) to a MaBiS-ZP. - The LF can trigger the forwarding of the MaBiS-ZP to be activated to the BKV, or - in the error case, the LF can initiate the clearing process with the ÜNB.
  3. ### First message The party involved on this page sends this itself: “Activation of a MaBiS-ZP for the LF-SZR (category B)” to **LF** (step 1).
  4. ### Objective The ÜNB has activated the MaBiS-ZP for the corresponding LF-SZR (category B) at the LF.
## 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 LF](/en/prozessdoku/202610/LF/MaBiS-aktivierung-eines-mabis-zaehlpunkts-fuer-die-lieferantensummenzeitreihe-vom-uenb-an-lf) — LF *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 source does not yet name the event that triggers these steps. 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)