# Fault rectification at the metering location — View NB
## Process flow from the perspective of the NB
\nSystem diagram: Störungsbehebung in der Messlokation — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\n3. Information über Störung\nan Messlokation\n\nMSB\n\nMessage\n23005\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\n5. Informationsmeldung über\nBehebung\n\n\nMSB\n\nMessage\n23009\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={""} titel="NB" />
## Process steps
### Notification of a fault
This step runs between other market partners and is not relevant for this view.
**Check identifiers**
- [23005](/en/schnittstellen/202604/pruefi/INSRPT/PI_23005) — Information notification
**Flow**
Message from **MSB**
**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.
### Result notification
This step runs between other market partners and is not relevant for this view.
**Check identifiers**
- [23008](/en/schnittstellen/202604/pruefi/INSRPT/PI_23008) — Result report
### Information notification on rectification
**Check identifiers**
- [23009](/en/schnittstellen/202604/pruefi/INSRPT/PI_23009) — Information notification
**Flow**
Message from **MSB**
**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.
## Process information
### First message
**MSB** sends “Information on a fault at the metering location” (step 3). From here on, it is the turn of the party involved on 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 LF](/en/prozessdoku/202604/LF/awh-wim-gas-2-0-storungsbehebung-in-der-messlokation) — LF
- [View MSB](/en/prozessdoku/202604/MSB/awh-wim-gas-2-0-storungsbehebung-in-der-messlokation) — MSB
*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.*
:::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: [3](#schritt-3)
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: [5](#schritt-5)