# Start of metering point operation — NB view The process describes the interactions between the market participants in the case where a single metering location is to be assigned to the registering MSB for carrying out metering point operation. This applies in particular when - it is the initial commissioning or the recommissioning of an individual metering location, - the metering point operation for this metering location is to be assigned to a wMSB for the first time or - the individual metering location is to be assigned to a MSB other than the previous one. ## Process flow from the perspective of the NB \nSystem diagram: Beginn Messstellenbetrieb — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\n1. Anmeldung\n\nMSBN\n\nAS4\n55042\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\nLoad data for the check\n\n\n3 read APIs called\n\nAPI\nlisted at the step\n\nEBD check: E_0201\nAnmeldung\nMessstellenbetrieb prüfen\n\n\nTrigger follow-up process:\n21007, 55043, 55044\n\n\nTriggered by incoming\nmessage: 55042\n\n\nLoad data for processing\n\n\n6 read APIs called\n\nAPI\nlisted at the step\n\n2. Antwort auf Anmeldung\n\n\nMSBN\n\nAS4\n55043, 55044\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nTriggered by incoming\nmessage: 55042\n\n\n3. Information über\nvorläufige\nAnmeldebestätigung\n\n\nMSBA\n\nAS4\n21007\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nTriggered by incoming\nmessage: 55042\n\n\n4. Information über\nvorläufige\nAnmeldebestätigung\n\n\nLF\n\nAS4\n21007\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n7. Mitteilung über\nGesamtvorgang\n\n\nMSBN\n\nAS4\n21009, 21010\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\nLoad data for the check\n\n\nMarktlokation lesen\n\nAPI\n\nEBD check: E_0232\nMitteilung über\nGesamtvorgang prüfen\n\n\nTrigger follow-up process:\n21011, 21012\n\n\nTriggered by incoming\nmessage: 21009, 21010\n\n\nLoad data for processing\n\n\nMesslokation lesen\n\nAPI\n\n8. Antwort auf Mitteilung\nüber Gesamtvorgang\n\n\nMSBN\n\nAS4\n21011, 21012\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nTriggered by incoming\nmessage: 21009\n\n\n14. Information über\nScheitern der Zuordnung\n\n\nMSBA\n\nAS4\n21011\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nTriggered by incoming\nmessage: 21009\n\n\n15. Information über\nScheitern der Zuordnung\n\n\nLF\n\nAS4\n21011\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n16. Mitteilung über das\nScheitern des\nGesamtvorgangs\n\n\nMSBN\n\nAS4\n21013, 21013\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n17. Information über\nScheitern der Zuordnung\n\n\nMSBA\n\nAS4\n21013\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n18. Information über\nScheitern der Zuordnung\n\n\nLF\n\nAS4\n21013\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Beginn Messstellenbetrieb — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nMSBN\n\n\nMSBA\n\n\nLF\n\n\n1. Anmeldung\nAS4 · PI 55042\n\nCreate transaction\nCreate process data\n\n2. Antwort auf Anmeldung\nAS4 · PI 55043, 55044 · E_0201\nE_0201 — Anmeldung Messstellenbetrieb prüfen\n\nUpdate transaction\nUpdate process data\n\n3. Information über vorläufige Anmeldebestätigung\nAS4 · PI 21007\n\nUpdate transaction\nUpdate process data\n\n4. Information über vorläufige Anmeldebestätigung\nAS4 · PI 21007\n\nUpdate transaction\nUpdate process data\n\n7. Mitteilung über Gesamtvorgang\nAS4 · PI 21009, 21010\n\nCreate transaction\nCreate process data\n\n8. Antwort auf Mitteilung über Gesamtvorgang\nAS4 · PI 21011, 21012 · E_0232\nE_0232 — Mitteilung über Gesamtvorgang prüfen\n\nUpdate transaction\nUpdate process data\n\n14. Information über Scheitern der Zuordnung\nAS4 · PI 21011 · E_0232\nE_0232 — Mitteilung über Gesamtvorgang prüfen\n\nUpdate transaction\nUpdate process data\n\n15. Information über Scheitern der Zuordnung\nAS4 · PI 21011 · E_0232\nE_0232 — Mitteilung über Gesamtvorgang prüfen\n\nUpdate transaction\nUpdate process data\n\n16. Mitteilung über das Scheitern des Gesamtvorga…\nAS4 · PI 21013, 21013\n\nUpdate transaction\nUpdate process data\n\n17. Information über Scheitern der Zuordnung\nAS4 · PI 21013\n\nUpdate transaction\nUpdate process data\n\n18. Information über Scheitern der Zuordnung\nAS4 · PI 21013\n\nUpdate transaction\nUpdate process data\n"} titel="NB" /> ## Process steps ### Registration
**Check identifiers** - [55042](/en/schnittstellen/202604/pruefi/UTILMD/PI_55042) — Registration MSB · AS4
**Flow**
  1. Message from **MSBN** · AS4
  2. **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.
  3. **Load data for the check** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - [Read metering location](/en/api/202604/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it - [Read metering point operation contract](/en/api/202604/backend-lesen/getmeasuringpointoperationcontractbasic#messstellenbetriebsvertrag-lesen) `GET /getMeasuringPointOperationContractBasic` Try it
  4. **Decision tree** - `55042` → [E_0201](/en/referenz/202604/ebd/E_0201) — Check registration of metering point operation
  5. **Trigger follow-up process** - [21007](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21007) — Status message - [55043](/en/schnittstellen/202604/pruefi/UTILMD/PI_55043) — Confirmation registration MSB - [55044](/en/schnittstellen/202604/pruefi/UTILMD/PI_55044) — Rejection registration MSB After processing, the MACO APP starts the follow-up process itself; which of them runs depends on the result of the processing.
### Response to registration
**Check identifiers** - [55043](/en/schnittstellen/202604/pruefi/UTILMD/PI_55043) — Confirmation registration MSB · AS4 - [55044](/en/schnittstellen/202604/pruefi/UTILMD/PI_55044) — Rejection registration MSB · AS4
**Flow**
  1. **Triggered by incoming message** - [55042](/en/schnittstellen/202604/pruefi/UTILMD/PI_55042) — Registration MSB The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. **Load data for processing** - [Read balancing](/en/api/202604/backend-lesen/getaccountingbasic#bilanzierung-lesen) `GET /getAccountingBasic` Try it - [Read location bundle](/en/api/202604/backend-lesen/getlocationbundlebasic#lokationsbundel-lesen) `GET /getLocationBundleBasic` Try it - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - [Read metering location](/en/api/202604/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it - [Read metering point operation contract](/en/api/202604/backend-lesen/getmeasuringpointoperationcontractbasic#messstellenbetriebsvertrag-lesen) `GET /getMeasuringPointOperationContractBasic` Try it - [Read meter](/en/api/202604/backend-lesen/getcounterbasic#zahler-lesen) `GET /getCounterBasic` Try it
  3. Message to **MSBN** · AS4
    **Response per decision tree** - `55043`, `55044` → [E_0201](/en/referenz/202604/ebd/E_0201) · Check registration of metering point operation
  4. **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 preliminary registration confirmation
**Check identifiers** - [21007](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21007) — Status message · AS4
**Flow**
  1. **Triggered by incoming message** - [55042](/en/schnittstellen/202604/pruefi/UTILMD/PI_55042) — Registration MSB The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. Message to **MSBA** · AS4
  3. **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 preliminary registration confirmation
**Check identifiers** - [21007](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21007) — Status message · AS4
**Flow**
  1. **Triggered by incoming message** - [55042](/en/schnittstellen/202604/pruefi/UTILMD/PI_55042) — Registration MSB The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. Message to **LF** · AS4
  3. **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.
### Notification of the overall transaction
**Check identifiers** - [21009](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21009) — Status message · AS4 - [21010](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21010) — Status message · AS4
**Flow**
  1. Message from **MSBN** · AS4
  2. **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.
  3. **Load data for the check** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it
  4. **Decision tree** - `21009` → [E_0232](/en/referenz/202604/ebd/E_0232) — Check notification on the overall transaction
  5. **Trigger follow-up process** - [21011](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21011) — Status message - [21012](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21012) — Status message After processing, the MACO APP starts the follow-up process itself; which of them runs depends on the result of the processing.
### Response to notification of the overall transaction
**Check identifiers** - [21011](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21011) — Status message · AS4 - [21012](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21012) — Status message · AS4
**Flow**
  1. **Triggered by incoming message** - [21009](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21009) — Status message - [21010](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21010) — Status message The MACO APP sends this message itself, as a follow-up process after one of these incoming messages.
  2. **Load data for processing** - [Read metering location](/en/api/202604/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it
  3. Message to **MSBN** · AS4
    **Response per decision tree** - `21011` → [E_0232](/en/referenz/202604/ebd/E_0232) · Check notification on the overall transaction
  4. **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 on failure of the assignment
**Check identifiers** - [21011](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21011) — Status message · AS4
**Flow**
  1. **Triggered by incoming message** - [21009](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21009) — Status message The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. Message to **MSBA** · AS4
    **Response per decision tree** - `21011` → [E_0232](/en/referenz/202604/ebd/E_0232) · Check notification on the overall transaction
  3. **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 on failure of the assignment
**Check identifiers** - [21011](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21011) — Status message · AS4
**Flow**
  1. **Triggered by incoming message** - [21009](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21009) — Status message The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. Message to **LF** · AS4
    **Response per decision tree** - `21011` → [E_0232](/en/referenz/202604/ebd/E_0232) · Check notification on the overall transaction
  3. **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.
### Notification of the failure of the overall transaction
**Check identifiers** - [21013](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21013) — Status message · AS4
**Flow**
  1. Message to **MSBN** · 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.
### Information on failure of the assignment
**Check identifiers** - [21013](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21013) — Status message · AS4
**Flow**
  1. Message to **MSBA** · 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.
### Information on failure of the assignment
**Check identifiers** - [21013](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21013) — Status message · AS4
**Flow**
  1. Message to **LF** · 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.
Decision trees of this process | EBD | Name | |---|---| | [E_0201](/referenz/202604/ebd/E_0201) | Check registration of metering point operation | | [E_0232](/referenz/202604/ebd/E_0232) | Check notification on the overall transaction |
## Process information Wording of the consolidated version, profile ch. 2.3.1, p. 22.
  1. ### Preconditions Conclusion of a MSB contract.
  2. ### Results - The NB can distribute the master data changed as a result at the metering or market location of a location bundle to the authorised parties. - The NB sends the calculation formula to the MSBN. - If the transmission of values to ESA is carried out, MSBA ends the transmission of values to ESA. - If MSBA has to end a configuration ordered by a NB or LF, - and the MSBA is the MSB of the directly affected location of the configuration to be ended, the MSBA carries out the use case „[Ending a configuration by the MSB](/en/prozessdoku/202604/NB/GPKE-Teil3-beendigung-einer-konfiguration-vom-msb)“ (GPKE part 3). - and, in the case that the MSBA is a „further MSB“ of the configuration to be ended, the MSBA carries out the use case „Order placement for ending a configuration to MSB“ (GPKE part 3).
  3. ### First message **MSBN** sends “Registration” (step 1). From here on, it is the turn of the party involved on this page.
  4. ### Objective The MSB is assigned to a metering location ( as part of a location bundle).
## 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/WiM-Teil1-beginn-messstellenbetrieb) — LF - [View MSBA](/en/prozessdoku/202604/MSB--MSBA/WiM-Teil1-beginn-messstellenbetrieb) — the transferring MSB · market role MSB - [View MSBN](/en/prozessdoku/202604/MSB--MSBN/WiM-Teil1-beginn-messstellenbetrieb) — the receiving MSB · market role MSB *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.*