# Request for master data change from the LF to NB (responsible) — BER view ## Process flow from the perspective of the MSB (BER) \nSystem diagram: Anfrage zur Stammdatenänderung vom LF an NB (verantwortlich) — view of MSB\n\n\nCustomer backend system\n\nMACO APP · MSB (Berechtig…\n\nMarket partner\n\n\n\n3. Ggf. Änderung vom NB an\nMSB\n\nNB (Verantwortlicher)\n\nAS4\n44113\n\nLoad data for the incoming\ncheck\n\n\n2 read APIs called\n\nAPI\nlisted at the step\n\nAPERAK check: Z10, Z17,\nZ18\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\nEBD check: G_0016\nNicht bila. rel. Ändeung vom\nNB\n\n\nTrigger follow-up process:\n44115\n\n\nTriggered by incoming\nmessage: 44113\n\n\n4. Antwort auf Änderung vom\nNB an MSB\n\n\nNB (Verantwortlicher)\n\nAS4\n44115\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Anfrage zur Stammdatenänderung vom LF an NB (verantwortlich) — view of MSB\n\n\nBackend (customer)\n\n\nMACO APP · MSB (Berechtig…\n\n\nLF (Berechtigter)\n\n\nNB (Verantwortlicher)\n\n\nLF (weiterer LF als Berec…\n\n\n1. Anfrage an NB von LF\nAS4 · PI 44139, 44156, 44180\n\n2. Antwort auf Anfrage an NB von LF\nAS4 · PI 44142, 44157, 44181… · E_3013\nE_3013 — Anfrage zur Stammdatenänderung prüfen\n\n3. Ggf. Änderung vom NB an MSB\nAS4 · PI 44113\n\nCreate transaction\nCreate process data\n\n4. Antwort auf Änderung vom NB an MSB\nAS4 · PI 44115 · E_3024\nE_3024 — Änderung vom NB prüfen\n\nUpdate transaction\nUpdate process data\n\n5. Ggf. Änderung vom NB an weitere LF\nAS4 · PI 44123, 44112\n\n6. Antwort auf Änderung vom NB an weitere LF\nAS4 · PI 44124, 44115 · E_3025\nE_3025 — Änderung vom NB prüfen\n"} titel="BER" /> ## Process steps ### Request to NB from LF This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44139](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44139) — Not bal.-rel. request to NB · AS4 - [44156](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44156) — Bal.-rel. request to NB with dependencies · AS4 - [44180](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44180) — Request for the market location structure · AS4
### Response to request to NB from LF This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44142](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44142) — Response to request · AS4 - [44157](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44157) — Response to request · AS4 - [44181](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44181) — Response to request for the market location structure · AS4 - [44182](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44182) — Rejection of the request for the market location structure · AS4
**Response per decision tree** - `44142`, `44157`, `44181`, `44182` → [E_3013](/en/referenz/202610/ebd/E_3013) · Check request for master data change
### Change from NB to MSB, if applicable
**Check identifiers** - [44113](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44113) — Non-bal.rel. change from NB · AS4
**Flow**
  1. Message from **NB (responsible party)** · AS4
  2. **Load data for the incoming check** - [Read market location](/en/api/202610/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - [Read metering location](/en/api/202610/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it
  3. **APERAK checks** - `44113` → `Z10` - `44113` → `Z17` - `44113` → `Z18`
  4. **Write endpoint** - Transaction created — [Create process data](/en/api/202610/backend-schreiben-msb/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
  5. **Decision tree** - `44113` → `G_0016` — Not bila. rel. change from the NB
  6. **Trigger follow-up process** - [44115](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44115) — Response to change from NB After processing, the MACO APP starts this follow-up process itself.
### Response to change from the NB to MSB
**Check identifiers** - [44115](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44115) — Response to change from NB · AS4
**Flow**
  1. **Triggered by incoming message** - [44113](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44113) — Non-bal.rel. change from NB The MACO APP sends this message itself, as a follow-up process after this incoming message.
  2. Message to **NB (responsible party)** · AS4
    **Response per decision tree** - `44115` → [E_3024](/en/referenz/202610/ebd/E_3024) · Check change from the NB
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/backend-schreiben-msb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Change from NB to further LF, if applicable This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44123](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44123) — Bal.-rel. change from NB with dependencies · AS4 - [44112](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44112) — Non-bal.rel. change from NB · AS4
### Response to change from the NB to further LF This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [44124](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44124) — Response to change from NB · AS4 - [44115](/en/schnittstellen/202610/pruefi/UTILMD_GAS/PI_44115) — Response to change from NB · AS4
**Response per decision tree** - `44124`, `44115` → [E_3025](/en/referenz/202610/ebd/E_3025) · Check change from the NB
Decision trees of this process | EBD | Name | |---|---| | [E_3024](/referenz/202610/ebd/E_3024) | Check change from the NB | | [E_3013](/referenz/202610/ebd/E_3013) | Check request for master data change | | [E_3025](/referenz/202610/ebd/E_3025) | Check change from the NB |
## Process information
  1. ### First message **NB (responsible party)** sends “If applicable, change from NB to MSB” (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 BER](/en/prozessdoku/202610/LF--BER/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-nb-verantwortlich) — the authorised party in this process step · market role LF - [View WLF](/en/prozessdoku/202610/LF--WLF/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-nb-verantwortlich) — a further supplier as authorised party · market role LF - [View NBV](/en/prozessdoku/202610/NB/geli-gas-2-0-anfrage-zur-stammdatenanderung-vom-lf-an-nb-verantwortlich) — responsible grid operator · market role NB *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: [3](#schritt-3), [4](#schritt-4)