# Activation of a MaBiS metering point for the supplier aggregated time series from the ÜNB to LF — LF 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 LF \nSystem diagram: Aktivierung eines MaBiS-Zählpunkts für die Lieferantensummenzeitreihe vom ÜNB an LF — view of LF\n\n\nCustomer backend system\n\nMACO APP · LF\n\nMarket partner\n\n\n\n1. Aktivierung eines\nMaBiS-ZP für die LF-SZR\n(Kategorie B)\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 Lieferantensummenzeitreihe vom ÜNB an LF — view of LF\n\n\nBackend (customer)\n\n\nMACO APP · LF\n\n\nÜNB\n\n\n1. Aktivierung eines MaBiS-ZP für die LF-SZR (Ka…\nAS4 · PI 55062\n\nCreate transaction\nCreate process data\n"} titel="LF" /> ## 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 from **ÜNB** · AS4
  2. **Write endpoint** - Transaction created — [Create process data](/en/api/202610/backend-schreiben-lf/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. 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 **ÜNB** sends “Activation of a MaBiS-ZP for the LF-SZR (Category B)” (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 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 ÜNB](/en/prozessdoku/202610/UENB/MaBiS-aktivierung-eines-mabis-zaehlpunkts-fuer-die-lieferantensummenzeitreihe-vom-uenb-an-lf) — 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.* 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)