# Transmission of the supplier aggregated time series from NB to LF — NB view For the balancing month, the NB delivers the LF-SZR (category A) to the LF for every activated MaBiS-ZP. The LF checks the LF-SZR (category A) and can, where required, communicate the check result to the NB by means of the validation notification. ## Process flow from the perspective of the NB \nSystem diagram: Übermittlung der Lieferantensummenzeitreihe vom NB an LF — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\n1. Übermittlung LF-SZR\n(Kategorie A)\n\nLF\n\nAS4\n13003\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n2. Übermittlung\nPrüfmitteilung\n\n\nLF\n\nAS4\n21000\n\nAPERAK check: Z33\n\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung der Lieferantensummenzeitreihe vom NB an LF — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nLF\n\n\n1. Übermittlung LF-SZR (Kategorie A)\nAS4 · PI 13003\n\nUpdate transaction\nUpdate process data\n\n2. Übermittlung Prüfmitteilung\nAS4 · PI 21000 · E_0007\nE_0007 — LF-SZR (Kategorie A) prüfen\n\nUpdate transaction\nUpdate process data\n"} titel="NB" /> ## Process steps ### Transmission of LF-SZR (category A)
**Check identifiers** - [13003](/en/schnittstellen/202610/pruefi/MSCONS/PI_13003) — Aggregated time series · AS4
**Flow**
  1. Message to **LF** · AS4
  2. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/backend-schreiben-nb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Transmission of validation notification
**Check identifiers** - [21000](/en/schnittstellen/202610/pruefi/IFTSTA/PI_21000) — Status message · AS4
**Flow**
  1. Message from **LF** · AS4
    **Response per decision tree** - `21000` → [E_0007](/en/referenz/202610/ebd/E_0007) · LF · Check LF-SZR (category A)
  2. **APERAK checks** - `21000` → `Z33`
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/backend-schreiben-nb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend with the data of the incoming message.
Decision trees of this process | EBD | Name | |---|---| | [E_0007](/referenz/202610/ebd/E_0007) | Check LF-SZR (category A) |
## Process information Wording of the consolidated version, profile ch. 7.4.1, p. 83.
  1. ### Preconditions The NB has activated the MaBiS-ZP for the LF-SZR (category A) with the LF for the time period under consideration.
  2. ### First message The party involved on this page is itself the sender of: „Transmission of LF-SZR (category A)“ to **LF** (step 1).
  3. ### Objective The LF has the LF-SZR (category A) from the NB. In addition, the NB may have a check result from the LF on the LF-SZR (category A) by means of a validation notification.
## 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-uebermittlung-der-lieferantensummenzeitreihe-vom-nb-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) 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: [2](#schritt-2) 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), [2](#schritt-2)