# Transmission of the monthly curtailed energy transfer time series between ANB and BKV (anfNB) — ANB view The ANB delivers the curtailed energy transfer time series for the time period under consideration to the BIKO; the BIKO forwards the monthly AAÜZ to the BKV (of the anfNB). The BKV have received the aggregated AAÜZ and the BKV (of the anfNB) checks them. The curtailed energy per TR is distributed among the respective requesting NB and aggregated per market location (the curtailed energy per quarter hour is assigned to exactly one requesting NB in each case) and totaled across all market locations of the respective requesting NB. ## Process flow from the perspective of the NB (ANB) \nSystem diagram: Übermittlung der monatlichen Ausfallarbeitsüberführungszeitreihe zwischen ANB und BKV (anfNB) — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB (ANB)\n\nMarket partner\n\n\n\n1. Monatliche AAÜZ\n\nBIKO\n\nAS4\n13020\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n2. Antwort\n\n\nBIKO\n\nAS4\n21002\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung der monatlichen Ausfallarbeitsüberführungszeitreihe zwischen ANB und BKV (anfNB) — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB (ANB)\n\n\nBIKO\n\n\nBKV (des anfNB)\n\n\n1. Monatliche AAÜZ\nAS4 · PI 13020\n\nUpdate transaction\nUpdate process data\n\n2. Antwort\nAS4 · PI 21002 · E_0080\nE_0080 — AAÜZ prüfen\n\nUpdate transaction\nUpdate process data\n\n3. Weiterleitung der monatlichen AAÜZ\nAS4 · PI 13020\n"} titel="ANB" /> ## Process steps ### Monthly AAÜZ
**Check identifiers** - [13020](/en/schnittstellen/202604/pruefi/MSCONS/PI_13020) — Curtailed energy transfer time series · AS4
**Flow**
  1. Message to **BIKO** · AS4
  2. **Write endpoint** - Transaction updated — [Update process data](/en/api/202604/backend-schreiben-nb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Response
**Check identifiers** - [21002](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21002) — Refusal · AS4
**Flow**
  1. Message from **BIKO** · AS4
    **Response per decision tree** - `21002` → [E_0080](/en/referenz/202604/ebd/E_0080) · BIKO · Check AAÜZ
  2. **Write endpoint** - Transaction updated — [Update process data](/en/api/202604/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.
### Forwarding of the monthly AAÜZ This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [13020](/en/schnittstellen/202604/pruefi/MSCONS/PI_13020) — Curtailed energy transfer time series · AS4
Decision trees of this process | EBD | Name | |---|---| | [E_0080](/referenz/202604/ebd/E_0080) | Check AAÜZ |
## Process information Wording of the consolidated version, profile ch. 17.3.5.3.1, pp. 275–276.
  1. ### Preconditions - Master data has been exchanged. - Curtailed energy has been determined at the ANB depending on the responsibility for the respective RD measure (right of first proposal).
  2. ### Results - The balancing group settlement for the BKV (of the anfNB) and the BKV (of the ANB) can be carried out. - The BKV (of the anfNB) checks the monthly AAÜZ.
  3. ### First message The party involved on this page is itself the sender of: „Monthly AAÜZ“ to **BIKO** (step 1).
  4. ### Objective The monthly AAÜZ determined by the grid operator per balancing group pair (RD balancing group of the ANB and RD balancing group of the requesting NB) is available to the BIKO and to the BKV (of the anfNB).
## 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 BIKO](/en/prozessdoku/202604/BIKO/MaBiS-uebermittlung-der-monatlichen-ausfallarbeitsueberfuehrungszeitreihe-zwischen-anb-und-bkv-anfnb) — BIKO - [View BKV-ANFNB](/en/prozessdoku/202604/BKV/MaBiS-uebermittlung-der-monatlichen-ausfallarbeitsueberfuehrungszeitreihe-zwischen-anb-und-bkv-anfnb) — balance responsible party of the requesting grid operator · market role BKV *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)