# Assignment of a grid load time series to a grid time series — View NBB ## Process flow from the perspective of the NB (NBB) \nSystem diagram: Zuordnung einer Netzgangzeitreihe zu einer Netzzeitreihe — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB (benachbart…\n\nMarket partner\n\n\n\n1. Zuordnung des\nZählpunktes der NGZ zur\nNZR\n\nNB (verantwortlicher…\n\nAS4\n55235\n\nAPERAK check: Z10, Z16,\nZ17, Z18\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\n2. Antwort\n\n\nNB (verantwortlicher…\n\nAS4\n55237\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Zuordnung einer Netzgangzeitreihe zu einer Netzzeitreihe — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB (benachbart…\n\n\nNB (verantwortlicher NB d…\n\n\nÜNB\n\n\n1. Zuordnung des Zählpunktes der NGZ zur NZR\nAS4 · PI 55235\n\nCreate transaction\nCreate process data\n\n2. Antwort\nAS4 · PI 55237 · E_0102\nE_0102 — Zuordnung prüfen\n\nUpdate transaction\nUpdate process data\n\n4. Information über die Zuordnung des Zählpunkte…\nAS4 · PI 55235\n"} titel="NBB" /> ## Process steps ### Assignment of the metering point of the NGZ to the NZR
**Check identifiers** - [55235](/en/schnittstellen/202604/pruefi/UTILMD/PI_55235) — Assignment ZP of the NGZ to the NZR · AS4
**Flow**
  1. Message from **NB (responsible NB of the NGZ)** · AS4
  2. **APERAK checks** - `55235` → `Z10` - `55235` → `Z16` - `55235` → `Z17` - `55235` → `Z18`
  3. **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.
### Response
**Check identifiers** - [55237](/en/schnittstellen/202604/pruefi/UTILMD/PI_55237) — Response · AS4
**Flow**
  1. Message to **NB (responsible NB of the NGZ)** · AS4
    **Response per decision tree** - `55237` → [E_0102](/en/referenz/202604/ebd/E_0102) · NB · Check assignment
  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.
### Information about the assignment of the metering point of the NGZ to the NZR This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55235](/en/schnittstellen/202604/pruefi/UTILMD/PI_55235) — Assignment ZP of the NGZ to the NZR · AS4
Decision trees of this process | EBD | Name | |---|---| | [E_0102](/referenz/202604/ebd/E_0102) | Check assignment |
## Process information
  1. ### First message **NB (NB responsible for the NGZ)** sends “Assignment of the metering point of the NGZ to the NZR” (step 1). From here on, it is the turn of the party covered by this page.
## 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 NBV](/en/prozessdoku/202604/NB--NBV/awh-erg-d-marktregeln-f-d-durchfur-d-bilanzkreisabr-strom-mabis-zuordnung-einer-netzgangzeitreihe-zu-einer-netzzeitreihe) — responsible grid operator · market role NB - [View ÜNB](/en/prozessdoku/202604/UENB/awh-erg-d-marktregeln-f-d-durchfur-d-bilanzkreisabr-strom-mabis-zuordnung-einer-netzgangzeitreihe-zu-einer-netzzeitreihe) — ÜNB · market role UENB *The source provides no use case profile for this process — objective, precondition and result are not recorded there.* *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 numbers are those of the source; where one is missing, it is missing there.* :::caution{title="Step sequence reconstructed"} For this process, the BNetzA consolidated version carries no sequence diagram. The steps are reconstructed from the BDEW check identifier table: grouped by the designation, ordered by the process step. The method agrees with the consolidated version in 200 of 200 cases that can be cross-checked — the individual line is nevertheless not editorially reviewed. Check it against the rulebook before adopting it into an implementation specification. ::: 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), [2](#schritt-2)