# Master data change initiated by MSB (responsible) — View LF The process describes the transmission of changed values of master data from the responsible party to the authorised parties. The authorised party checks the data and gives the responsible party a quality response message on the content of the data. If the authorised party expects a different data content, it states this in the response message. In this case the responsible party informs the authorised party of the processing status of that response message. ## Process flow from the perspective of the LF \nSystem diagram: Stammdatenänderung vom MSB (verantwortlich) ausgehend — view of LF\n\n\nCustomer backend system\n\nMACO APP · LF\n\nMarket partner\n\n\n\n4. Änderung vom MSB an LF\n\nMSB\n\nAS4\n55649, 55553, 55650…\n\nLoad data for the incoming\ncheck\n\n\n5 read APIs called\n\nAPI\nlisted at the step\n\nAPERAK check: Z10\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\nPI 55650, 55653, 55649, 55651, 55…\n\nCreate transaction\n\n\nCreate process data\n\nAPI\nPI 55553\n\nLoad data for the check\n\n\nMarktlokation lesen\n\nAPI\n\nEBD check: E_0412\nÄnderung vom MSB prüfen\n(Basiert auf EBD:\nE_0408_Änderung vom NB\nprüfen)\n\n\nTrigger follow-up process:\n55555, 55654, 55655,\n55656, 55657, 5…\n\n\nTriggered by incoming\nmessage: 55553, 55649,\n55650, 55651, 55652,…\n\n\nProcess trigger received\n\n\nSTART_BESTELLUNG_SDAE\n\nAPI\n\nLoad data for processing\n\n\n8 read APIs called\n\nAPI\nlisted at the step\n\n5. Rückmeldung auf\nÄnderung\n\n\nMSB\n\nAS4\n55654, 55555, 55655…\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n6. Bearbeitungsstand zur\nRückmeldung\n\n\nMSB\n\nAS4\n21047\n\nAPERAK check: Z33\n\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Stammdatenänderung vom MSB (verantwortlich) ausgehend — view of LF\n\n\nBackend (customer)\n\n\nMACO APP · LF\n\n\nMSB\n\n\nNB\n\n\nweiterer MSB\n\n\nÜNB\n\n\n1. Änderung vom MSB an NB\nAS4 · PI 55557, 55553, 55639…\n\n2. Rückmeldung auf Änderung\nAS4 · PI 55559, 55555, 55644… · E_0415\nE_0415 — Änderung vom MSB prüfen\n\n3. Bearbeitungsstand zur Rückmeldung\nAS4 · PI 21047 · E_0632\nE_0632 — Rückmeldung auf Änderung prüfen\n\n4. Änderung vom MSB an LF\nAS4 · PI 55649, 55553, 55650…\n\nCreate transaction\nCreate process data · PI 55650, 55653, 55649, 55651, 55…\n\nCreate transaction\nCreate process data · PI 55553\n\nSTART_BESTELLUNG_SDAE\nTrigger event\n\n5. Rückmeldung auf Änderung\nAS4 · PI 55654, 55555, 55655… · E_0412\nE_0412 — Änderung vom MSB prüfen\n\nUpdate transaction\nUpdate process data\n\n6. Bearbeitungsstand zur Rückmeldung\nAS4 · PI 21047 · E_0633\nE_0633 — Rückmeldung auf Änderung prüfen\n\nUpdate transaction\nUpdate process data\n\n7. Änderung vom MSB an weiteren MSB\nAS4 · PI 55659, 55553, 55660…\n\n8. Rückmeldung auf Änderung\nAS4 · PI 55664, 55555, 55665… · E_0583\nE_0583 — Änderung vom MSB prüfen\n\n9. Bearbeitungsstand zur Rückmeldung\nAS4 · PI 21047 · E_0634\nE_0634 — Rückmeldung auf Änderung prüfen\n\n11. Änderung vom MSB an ÜNB\nAS4 · PI 55684, 55686\n\n12. Rückmeldung auf Änderung\nAS4 · PI 55685, 55687 · E_0639\nE_0639 — Änderung vom MSB prüfen\n\n13. Bearbeitungsstand zur Rückmeldung\nAS4 · PI 21047 · E_0635\nE_0635 — Rückmeldung auf Änderung prüfen\n"} titel="LF" /> ## Process steps ### Change from the MSB to NB This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55557](/en/schnittstellen/202604/pruefi/UTILMD/PI_55557) — Change MSB bill. data of the MaLo · AS4 - [55553](/en/schnittstellen/202604/pruefi/UTILMD/PI_55553) — Data on individual order placement · AS4 - [55639](/en/schnittstellen/202604/pruefi/UTILMD/PI_55639) — Change of NeLo data · AS4 - [55640](/en/schnittstellen/202604/pruefi/UTILMD/PI_55640) — Change of MaLo data · AS4 - [55641](/en/schnittstellen/202604/pruefi/UTILMD/PI_55641) — Change of SR data · AS4 - [55642](/en/schnittstellen/202604/pruefi/UTILMD/PI_55642) — Change of tranche data · AS4 - [55643](/en/schnittstellen/202604/pruefi/UTILMD/PI_55643) — Change of MeLo data · AS4
### Response message on change This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55559](/en/schnittstellen/202604/pruefi/UTILMD/PI_55559) — Response message/request MSB bill. data of the MaLo · AS4 - [55555](/en/schnittstellen/202604/pruefi/UTILMD/PI_55555) — Request data of the individual order placement · AS4 - [55644](/en/schnittstellen/202604/pruefi/UTILMD/PI_55644) — Response message/request NeLo data · AS4 - [55645](/en/schnittstellen/202604/pruefi/UTILMD/PI_55645) — Response message/request MaLo data · AS4 - [55646](/en/schnittstellen/202604/pruefi/UTILMD/PI_55646) — Response message/request SR data · AS4 - [55647](/en/schnittstellen/202604/pruefi/UTILMD/PI_55647) — Response message/request tranche data · AS4 - [55648](/en/schnittstellen/202604/pruefi/UTILMD/PI_55648) — Response message/request MeLo data · AS4
**Response per decision tree** - `55559`, `55555`, `55644`, `55645`, `55646`, `55647`, `55648` → [E_0415](/en/referenz/202604/ebd/E_0415) · NB · Check change from the MSB (Based on EBD: E_0408_Check change from the NB)
### Processing status of the response message This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [21047](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21047) — Processing status message · AS4
**Response per decision tree** - `21047` → [E_0632](/en/referenz/202604/ebd/E_0632) · MSB · Check response message to the change (Based on EBD: E_0626_Check response message to the change)
### Change from the MSB to LF
**Check identifiers** - [55649](/en/schnittstellen/202604/pruefi/UTILMD/PI_55649) — Change of NeLo data · AS4 - [55553](/en/schnittstellen/202604/pruefi/UTILMD/PI_55553) — Data on individual order placement · AS4 - [55650](/en/schnittstellen/202604/pruefi/UTILMD/PI_55650) — Change of MaLo data · AS4 - [55651](/en/schnittstellen/202604/pruefi/UTILMD/PI_55651) — Change of SR data · AS4 - [55652](/en/schnittstellen/202604/pruefi/UTILMD/PI_55652) — Change of tranche data · AS4 - [55653](/en/schnittstellen/202604/pruefi/UTILMD/PI_55653) — Change of MeLo data · AS4
**Flow**
  1. Message from **MSB** · AS4
  2. **Load data for the incoming check** - [Read grid location](/en/api/202604/backend-lesen/getgridlocationbasic#netzlokation-lesen) `GET /getGridLocationBasic` Try it - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - [Read controllable resource](/en/api/202604/backend-lesen/getcontrollableresourcebasic#steuerbare-ressource-lesen) `GET /getControllableResourceBasic` Try it - [Read tranche](/en/api/202604/backend-lesen/gettranchebasic#tranche-lesen) `GET /getTrancheBasic` Try it - [Read metering location](/en/api/202604/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it
  3. **APERAK checks** - `55649`, `55650`, `55651`, `55652`, `55653` → `Z10` — APERAK check: Is location known ?
  4. **Write endpoint** - `55650`, `55653`, `55649`, `55651`, `55652` → Transaction created — [Create process data](/en/api/202604/backend-schreiben-lf/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
  5. **Write endpoint** - `55553` → Transaction created — [Create process data](/en/api/202604/backend-schreiben-lf/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
  6. **Load data for the check** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it
  7. **Decision tree** - `55649`, `55553`, `55650`, `55651`, `55652`, `55653` → [E_0412](/en/referenz/202604/ebd/E_0412) — Check change from the MSB (Based on EBD: E_0408_Check change from the NB)
  8. **Trigger follow-up process** - [55555](/en/schnittstellen/202604/pruefi/UTILMD/PI_55555) — Request data of the individual order placement - [55654](/en/schnittstellen/202604/pruefi/UTILMD/PI_55654) — Response message/request NeLo data - [55655](/en/schnittstellen/202604/pruefi/UTILMD/PI_55655) — Response message/request MaLo data - [55656](/en/schnittstellen/202604/pruefi/UTILMD/PI_55656) — Response message/request SR data - [55657](/en/schnittstellen/202604/pruefi/UTILMD/PI_55657) — Response message/request tranche data - [55658](/en/schnittstellen/202604/pruefi/UTILMD/PI_55658) — Response message/request MeLo data After processing, the MACO APP starts the follow-up process itself; which of them runs depends on the result of the processing.
### Response message on change
**Check identifiers** - [55654](/en/schnittstellen/202604/pruefi/UTILMD/PI_55654) — Response message/request NeLo data · AS4 - [55555](/en/schnittstellen/202604/pruefi/UTILMD/PI_55555) — Request data of the individual order placement · AS4 - [55655](/en/schnittstellen/202604/pruefi/UTILMD/PI_55655) — Response message/request MaLo data · AS4 - [55656](/en/schnittstellen/202604/pruefi/UTILMD/PI_55656) — Response message/request SR data · AS4 - [55657](/en/schnittstellen/202604/pruefi/UTILMD/PI_55657) — Response message/request tranche data · AS4 - [55658](/en/schnittstellen/202604/pruefi/UTILMD/PI_55658) — Response message/request MeLo data · AS4
**Flow**
  1. **Triggered by incoming message** - [55553](/en/schnittstellen/202604/pruefi/UTILMD/PI_55553) — Data on individual order placement - [55649](/en/schnittstellen/202604/pruefi/UTILMD/PI_55649) — Change of NeLo data - [55650](/en/schnittstellen/202604/pruefi/UTILMD/PI_55650) — Change of MaLo data - [55651](/en/schnittstellen/202604/pruefi/UTILMD/PI_55651) — Change of SR data - [55652](/en/schnittstellen/202604/pruefi/UTILMD/PI_55652) — Change of tranche data - [55653](/en/schnittstellen/202604/pruefi/UTILMD/PI_55653) — Change of MeLo data The MACO APP sends this message itself, as a follow-up process after one of these incoming messages. In addition, the backend can trigger this step with an event — the next item.
  2. **Prozessauslöser** [`START_BESTELLUNG_SDAE`](/en/api/202604/ausloeser-lf/start-bestellung-sdae) \",\n \"bilanzkreis\": \"\",\n \"datenqualitaet\": \"\",\n \"detailsPrognosegrundlage\": [\n \"\"\n ],\n \"gueltigkeitszeitraum\": {\n \"zeitraumId\": \"\"\n },\n \"jahresverbrauchsprognose\": {\n \"einheit\": \"\",\n \"wert\": \"\"\n },\n \"lastprofile\": [\n \"\"\n ],\n \"prognosegrundlage\": \"\",\n \"temperaturarbeit\": {\n \"einheit\": \"\",\n \"wert\": \"\"\n },\n \"zeitreihentyp\": \"\"\n }\n ],\n \"MARKTLOKATION\": [\n {\n \"bilanzierungsgebiet\": \"\",\n \"datenqualitaet\": \"\",\n \"gueltigkeitszeitraum\": {\n \"zeitraumId\": \"\"\n },\n \"marktlokationsId\": \"\",\n \"marktrollen\": [\n \"\"\n ],\n \"regelzone\": \"\"\n }\n ],\n \"VERWENDUNGSZEITRAUM\": [\n {\n \"datenqualitaet\": \"\",\n \"verwendungAb\": \"\",\n \"verwendungBis\": \"\",\n \"zeitraumId\": null\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"marktrolle\": \"\",\n \"rollencodenummer\": \"\"\n },\n \"gueltigAb\": \"\",\n \"kategorie\": \"\",\n \"sparte\": \"\",\n \"transaktionsgrund\": \"\",\n \"transaktionsgrundergaenzung\": \"\",\n \"vertragsbeginn\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_BESTELLUNG_SDAE\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  3. **Load data for processing** - [Read grid location](/en/api/202604/backend-lesen/getgridlocationbasic#netzlokation-lesen) `GET /getGridLocationBasic` Try it - [Read balancing](/en/api/202604/backend-lesen/getaccountingbasic#bilanzierung-lesen) `GET /getAccountingBasic` 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 grid usage contract](/en/api/202604/backend-lesen/getgridusagecontractbasic#netznutzungsvertrag-lesen) `GET /getGridUsageContractBasic` Try it - [Read meter](/en/api/202604/backend-lesen/getcounterbasic#zahler-lesen) `GET /getCounterBasic` Try it - [Read controllable resource](/en/api/202604/backend-lesen/getcontrollableresourcebasic#steuerbare-ressource-lesen) `GET /getControllableResourceBasic` Try it - [Read tranche](/en/api/202604/backend-lesen/gettranchebasic#tranche-lesen) `GET /getTrancheBasic` Try it
  4. Message to **MSB** · AS4
    **Response per decision tree** - `55654`, `55555`, `55655`, `55656`, `55657`, `55658` → [E_0412](/en/referenz/202604/ebd/E_0412) · LF · Check change from the MSB (Based on EBD: E_0408_Check change from the NB)
  5. **Write endpoint** - Transaction updated — [Update process data](/en/api/202604/backend-schreiben-lf/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Processing status of the response message
**Check identifiers** - [21047](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21047) — Processing status message · AS4
**Flow**
  1. Message from **MSB** · AS4
    **Response per decision tree** - `21047` → [E_0633](/en/referenz/202604/ebd/E_0633) · MSB · Check response message to the change (Based on EBD: E_0626_Check response message to the change)
  2. **APERAK checks** - `21047` → `Z33` — APERAK check: Is referenced message known ?
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202604/backend-schreiben-lf/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend with the data of the incoming message.
### Change from the MSB to further MSB This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55659](/en/schnittstellen/202604/pruefi/UTILMD/PI_55659) — Change of NeLo data · AS4 - [55553](/en/schnittstellen/202604/pruefi/UTILMD/PI_55553) — Data on individual order placement · AS4 - [55660](/en/schnittstellen/202604/pruefi/UTILMD/PI_55660) — Change of MaLo data · AS4 - [55661](/en/schnittstellen/202604/pruefi/UTILMD/PI_55661) — Change of SR data · AS4 - [55662](/en/schnittstellen/202604/pruefi/UTILMD/PI_55662) — Change of tranche data · AS4 - [55663](/en/schnittstellen/202604/pruefi/UTILMD/PI_55663) — Change of MeLo data · AS4
### Response message on change This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55664](/en/schnittstellen/202604/pruefi/UTILMD/PI_55664) — Response message/request NeLo data · AS4 - [55555](/en/schnittstellen/202604/pruefi/UTILMD/PI_55555) — Request data of the individual order placement · AS4 - [55665](/en/schnittstellen/202604/pruefi/UTILMD/PI_55665) — Response message/request MaLo data · AS4 - [55666](/en/schnittstellen/202604/pruefi/UTILMD/PI_55666) — Response message/request SR data · AS4 - [55667](/en/schnittstellen/202604/pruefi/UTILMD/PI_55667) — Response message/request tranche data · AS4 - [55669](/en/schnittstellen/202604/pruefi/UTILMD/PI_55669) — Response message/request MeLo data · AS4
**Response per decision tree** - `55664`, `55555`, `55665`, `55666`, `55667`, `55669` → [E_0583](/en/referenz/202604/ebd/E_0583) · MSB · Check change from the MSB (Based on EBD: E_0408_Check change from the NB)
### Processing status of the response message This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [21047](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21047) — Processing status message · AS4
**Response per decision tree** - `21047` → [E_0634](/en/referenz/202604/ebd/E_0634) · MSB · Check response message to the change (Based on EBD: E_0626_Check response message to the change)
### Change from the MSB to ÜNB This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55684](/en/schnittstellen/202604/pruefi/UTILMD/PI_55684) — Change of MaLo data · AS4 - [55686](/en/schnittstellen/202604/pruefi/UTILMD/PI_55686) — Change of tranche data · AS4
### Response message on change This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [55685](/en/schnittstellen/202604/pruefi/UTILMD/PI_55685) — Response message/request MaLo data · AS4 - [55687](/en/schnittstellen/202604/pruefi/UTILMD/PI_55687) — Response message/request tranche data · AS4
**Response per decision tree** - `55685`, `55687` → [E_0639](/en/referenz/202604/ebd/E_0639) · ÜNB · Check change from the MSB (Based on EBD: E_0408_Check change from the NB)
### Processing status of the response message This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [21047](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21047) — Processing status message · AS4
**Response per decision tree** - `21047` → [E_0635](/en/referenz/202604/ebd/E_0635) · MSB · Check response message to the change (Based on EBD: E_0626_Check response message to the change)
Decision trees of this process | EBD | Name | |---|---| | [E_0412](/referenz/202604/ebd/E_0412) | Check change from the MSB (Based on EBD: E_0408_Check change from the NB) | | [E_0633](/referenz/202604/ebd/E_0633) | Check response message to the change (Based on EBD: E_0626_Check response message to the change) | | [E_0415](/referenz/202604/ebd/E_0415) | Check change from the MSB (Based on EBD: E_0408_Check change from the NB) | | [E_0583](/referenz/202604/ebd/E_0583) | Check change from the MSB (Based on EBD: E_0408_Check change from the NB) | | [E_0632](/referenz/202604/ebd/E_0632) | Check response message to the change (Based on EBD: E_0626_Check response message to the change) | | [E_0634](/referenz/202604/ebd/E_0634) | Check response message to the change (Based on EBD: E_0626_Check response message to the change) | | [E_0635](/referenz/202604/ebd/E_0635) | Check response message to the change (Based on EBD: E_0626_Check response message to the change) | | [E_0639](/referenz/202604/ebd/E_0639) | Check change from the MSB (Based on EBD: E_0408_Check change from the NB) |
## Process information Wording of the consolidated version, profile ch. 1.4.1, p. 5.
  1. ### Preconditions - A current or future agreed assignment of the market partners in the respective role to the location exists.
  2. ### Results - The follow-up processes build on reconciled and synchronous master data values from the change date onwards. - The change carried out in this use case may, among other things, result in a transmission of values from MSB being required. The order issuance for the transmission of values results from the values of the corresponding master data item. No further order issuance is made towards MSB.
  3. ### Error case #### Result in the error case The responsible party must enter into bilateral clearing with the parties involved and, where applicable, trigger the process again. #### Error cases The response message leads to the conclusion that the data are not held in sync across the market.
  4. ### Further requirements - In the case of the SD “Master data change originating from MSB (responsible)” the following applies: The responsible MSB of a metering location is always the MSB that is assigned to the metering location at the point in time at which the value of the master data item is changed. The following exception applies: If the use case “[Device takeover](/en/prozessdoku/202604/MSB--MSBA/WiM-Teil1-geraeteuebernahme)” (WiM Part 1) takes place at the metering location, then in addition to the aforementioned MSB (referred to as MSBA in the use case “[Device takeover](/en/prozessdoku/202604/MSB--MSBA/WiM-Teil1-geraeteuebernahme)”), MSBN is also entitled to apply the SD “Master data change originating from MSB (responsible)” for this metering location as the responsible MSB.
  5. ### Trigger - The party responsible for a master data item has a new value for that master data item. The responsible party obtains this information, for example, from preceding processes or messages that cause the value of a master data item to change for one or more authorised parties. - The responsible party assumes there is a data discrepancy between the authorised parties and the responsible party. **Runs beforehand:** [Termination of a configuration from MSB](/en/prozessdoku/202604/LF/GPKE-Teil3-beendigung-einer-konfiguration-vom-msb), [Order placement for the termination of a configuration from LF to MSB](/en/prozessdoku/202604/LF/GPKE-Teil3-bestellung-beendigung-einer-konfiguration-vom-lf-an-msb), [Order placement for the termination of a configuration from NB to MSB](/en/prozessdoku/202604/MSB/GPKE-Teil3-bestellung-beendigung-einer-konfiguration-vom-nb-an-msb), [Order placement for the termination of a configuration from the further MSB to MSB](/en/prozessdoku/202604/LF/GPKE-Teil3-bestellung-beendigung-einer-konfiguration-vom-weiteren-msb-an-msb), [Order placement for a configuration from LF to MSB](/en/prozessdoku/202604/LF/GPKE-Teil3-bestellung-einer-konfiguration-vom-lf-an-msb), [Order placement for a configuration from NB to MSB](/en/prozessdoku/202604/MSB/GPKE-Teil3-bestellung-einer-konfiguration-vom-nb-an-msb), [Setup of the configurations on the basis of an assignment of a LF to a market location or tranche](/en/prozessdoku/202604/MSB/GPKE-Teil3-einrichtung-der-konfigurationen-aufgrund-einer-zuordnung-eines-lf-zu-einer-marktlokation-bzw-tranche) — these processes name the one shown here in their result.
  6. ### First message **MSB** sends “Change from MSB to LF” (step 4). From here on, it is the turn of the party involved on this page.
  7. ### Objective The responsible party and the authorized parties have the same master data values.
## 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 NB](/en/prozessdoku/202604/NB/GPKE-Teil4-stammdatenaenderung-vom-msb-verantwortlich-ausgehend) — NB - [View MSB](/en/prozessdoku/202604/MSB/GPKE-Teil4-stammdatenaenderung-vom-msb-verantwortlich-ausgehend) — MSB - [View WMSB](/en/prozessdoku/202604/MSB--WMSB/GPKE-Teil4-stammdatenaenderung-vom-msb-verantwortlich-ausgehend) — further metering point operator · market role MSB - [View ÜNB](/en/prozessdoku/202604/UENB/GPKE-Teil4-stammdatenaenderung-vom-msb-verantwortlich-ausgehend) — ÜNB · market role UENB *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.* 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: [4](#schritt-4)