# Request for master data change from the LF to MSB (responsible) — BER view ## Process flow from the perspective of the LF (BER) \nSystem diagram: Anfrage zur Stammdatenänderung vom LF an MSB (verantwortlich) — view of LF\n\n\nCustomer backend system\n\nMACO APP · LF (Berechtigt…\n\nMarket partner\n\n\n\nProcess trigger received\n\nSTART_ANFRAGE_STAMMDA\nTENAENDERUNG…\n\nAPI\n\n1. Anfrage an MSB\n\n\nNB (Verteiler)\n\nAS4\n44162, 44143\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n4. Antwort auf Anfrage an\nMSB\n\n\nNB (Verteiler)\n\nAS4\n44163, 44164, 44145…\n\nAPERAK check: Z33\n\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Anfrage zur Stammdatenänderung vom LF an MSB (verantwortlich) — view of LF\n\n\nBackend (customer)\n\n\nMACO APP · LF (Berechtigt…\n\n\nNB (Verteiler)\n\n\nMSB (Berechtigter)\n\n\nLF (weiterer LF als Berec…\n\n\nSTART_ANFRAGE_STAMMDATENAENDERUNG_GAS\nTrigger event\n\n1. Anfrage an MSB\nAS4 · PI 44162, 44143\n\nUpdate transaction\nUpdate process data\n\n2. Anfrage an MSB (Weiterleitung)\nAS4 · PI 44165, 44147\n\n3. Antwort auf Anfrage an MSB\nAS4 · PI 44167, 44149 · E_3016\nE_3016 — Anfrage an MSB prüfen\n\n4. Antwort auf Anfrage an MSB\nAS4 · PI 44163, 44164, 44145… · E_3017, E_3031\nE_3017 — Antwort auf Anfrage an MSB (Weiterleitung) prüfen\nE_3031 — Weiterleitung der Anfrage an MSB prüfen\n\nUpdate transaction\nUpdate process data\n\n5. Ggf. Änderung vom MSB\nAS4 · PI 44160, 44117\n\n6. Antwort auf Änderung vom MSB\nAS4 · PI 44161, 44119 · E_3032\nE_3032 — Änderung vom MSB prüfen\n"} titel="BER" /> ## Process steps ### Request to MSB
**Check identifiers** - [44162](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44162) — Request to MSB without dependencies · AS4 - [44143](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44143) — Request to MSB with dependencies · AS4
**Flow**
  1. **Prozessauslöser** [`START_ANFRAGE_STAMMDATENAENDERUNG_GAS`](/en/api/202610/ausloeser-lf/start-anfrage-stammdatenaenderung-gas) \"\n }\n ],\n \"MARKTLOKATION\": [\n {\n \"eigentuemer\": {\n \"anrede\": \"\",\n \"gewerbekennzeichnung\": \"\",\n \"name1\": \"\",\n \"name2\": \"\",\n \"name3\": \"\",\n \"name4\": \"\",\n \"partneradresse\": \"\"\n },\n \"hausverwalter\": {\n \"anrede\": \"\",\n \"gewerbekennzeichnung\": \"\",\n \"name1\": \"\",\n \"name2\": \"\",\n \"name3\": \"\",\n \"name4\": \"\",\n \"partneradresse\": \"\"\n },\n \"lokationsadresse\": {\n \"hausnummer\": \"\",\n \"landescode\": \"\",\n \"ort\": \"\",\n \"ortsteil\": \"\",\n \"postfach\": \"\",\n \"postleitzahl\": \"\",\n \"strasse\": \"\",\n \"zusatzInformation\": \"\"\n },\n \"marktgebiet\": \"\",\n \"marktlokationsId\": \"\",\n \"netzebene\": \"\",\n \"zaehlwerke\": [\n \"\"\n ]\n }\n ],\n \"MESSLOKATION\": [\n {\n \"gasqualitaet\": \"\",\n \"marktrollen\": [\n \"\"\n ],\n \"messlokationsId\": \"\"\n }\n ],\n \"NETZNUTZUNGSVERTRAG\": [\n {\n \"gemeinderabatt\": null,\n \"korrespondenzpartner\": {\n \"anrede\": \"\",\n \"gewerbekennzeichnung\": \"\",\n \"name1\": \"\",\n \"name2\": \"\",\n \"name3\": \"\",\n \"name4\": \"\",\n \"partneradresse\": \"\"\n },\n \"vertragsbeginn\": \"\",\n \"vertragskonditionen\": {\n \"naechstenetznutzungsabrechnung\": \"\",\n \"netznutzungsabrechnung\": \"\",\n \"netznutzungsabrechnungIntervall\": \"\",\n \"netznutzungsabrechnungsvariante\": \"\",\n \"netznutzungsvertrag\": \"\",\n \"netznutzungszahler\": \"\"\n },\n \"vertragspartner2\": [\n \"\"\n ]\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 \"vertragsende\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_ANFRAGE_STAMMDATENAENDERUNG\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  2. Message to **NB (distributor)** · AS4
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/backend-schreiben-lf/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Request to MSB (forwarding) This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44165](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44165) — Not bal.-rel. request to MSB without dependencies · AS4 - [44147](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44147) — Request to MSB with dependencies · AS4
### Response to request to MSB This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44167](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44167) — Response to request · AS4 - [44149](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44149) — Response to request · AS4
**Response per decision tree** - `44167`, `44149` → [E_3016](/en/referenz/202610/ebd/E_3016) · Check request to MSB
### Response to request to MSB
**Check identifiers** - [44163](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44163) — Response to request · AS4 - [44164](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44164) — Rejection of request · AS4 - [44145](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44145) — Response to request · AS4 - [44146](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44146) — Rejection of the request · AS4
**Flow**
  1. Message from **NB (distributor)** · AS4
    **Response per decision tree** - `44163` → [E_3031](/en/referenz/202610/ebd/E_3031) · Check forwarding of the request to MSB - `44163`, `44164`, `44145`, `44146` → [E_3017](/en/referenz/202610/ebd/E_3017) · Check response to request to MSB (forwarding)
  2. **APERAK checks** - `44163`, `44164`, `44145`, `44146` → `Z33` — APERAK check: Is referenced message known ?
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/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 MSB, if applicable This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44160](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44160) — Change from MSB without dependencies · AS4 - [44117](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44117) — Change from MSB with dependencies · AS4
### Response to change from the MSB This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44161](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44161) — Response to change · AS4 - [44119](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44119) — Response to change from MSB · AS4
**Response per decision tree** - `44161`, `44119` → [E_3032](/en/referenz/202610/ebd/E_3032) · Check change from the MSB
Decision trees of this process | EBD | Name | |---|---| | [E_3017](/referenz/202610/ebd/E_3017) | Check response to request to MSB (forwarding) | | [E_3031](/referenz/202610/ebd/E_3031) | Check forwarding of the request to MSB | | [E_3016](/referenz/202610/ebd/E_3016) | Check request to MSB | | [E_3032](/referenz/202610/ebd/E_3032) | Check change from the MSB |
## Process information
  1. ### First message The party involved on this page sends this itself: “Request to MSB” to **NB (distribution list)** (step 1).
## 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 WLF](/en/prozessdoku/202610/LF--WLF/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-msb-verantwortlich) — a further supplier as authorised party · market role LF - [View NB](/en/prozessdoku/202610/NB/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-msb-verantwortlich) — NB - [View BER](/en/prozessdoku/202610/MSB/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-msb-verantwortlich) — the authorised party in this process step · market role 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. ::: 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), [4](#schritt-4)