# End of supply from NB to LF — NB view The NB announces to the LF the termination of the assignment of the LF to the market location or tranche. In the course of the process - the NB terminates the assignment of the MSB to the market location or metering location upon decommissioning of the market location. - in the event of a decommissioning of the market location, the NB cancels - where applicable, the assignment of the LFZ to the market location or tranche. - where applicable, the assignment of the MSBZ to the market location or metering location. ## Process flow from the perspective of the NB \nSystem diagram: Lieferende von NB an LF — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\nProcess trigger received\n\nSTART_LIEFERENDE\n\nAPI\n\n1. Ankündigung der\nBeendigung der Zuordnung\ndes LF zur Marktlo…\n\n\nLF\n\nAS4\n55007\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\n2. Antwort auf Ankündigung\nder Beendigung der\nZuordnung des LF…\n\n\nLF\n\nAS4\n55008, 55009\n\nAPERAK check: Z33\n\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\nSTART_LIEFERENDE\n\nAPI\n\n3. Beendigung der\nZuordnung des LF zur\nMarktlokation bzw. Tran…\n\n\nLF\n\nAS4\n55007\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\nSTART_AUFH_ZUK_ZUORDN\nUNG\n\nAPI\n\nLoad data for processing\n\n\n3 read APIs called\n\nAPI\nlisted at the step\n\n8. Aufhebung der Zuordnung\ndes LFZ zur Marklokation\nbzw. Tranc…\n\n\nLFZ\n\nAS4\n55038\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\nSTART_ENDE_ZUORDNUNG\n\nAPI\n\n11. Beendigung der\nZuordnung des MSB zur\nMarklokation bzw. Mess…\n\n\nMSB\n\nAS4\n55611\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\nSTART_ENDE_ZUORDNUNG\n\nAPI\n\n13. Aufhebung der\nZuordnung des MSBZ zur\nMarktlokation bzw. Mes…\n\n\nMSBZ\n\nAS4\n55611\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Lieferende von NB an LF — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nLF\n\n\nLFZ\n\n\nMSB\n\n\nMSBZ\n\n\nSTART_LIEFERENDE\nTrigger event\n\n1. Ankündigung der Beendigung der Zuordnung des…\nAS4 · PI 55007\n\nUpdate transaction\nUpdate process data\n\n2. Antwort auf Ankündigung der Beendigung der Zu…\nAS4 · PI 55008, 55009 · E_0609\nE_0609 — Abmeldung prüfen\n\nUpdate transaction\nUpdate process data\n\nSTART_LIEFERENDE\nTrigger event\n\n3. Beendigung der Zuordnung des LF zur Marktloka…\nAS4 · PI 55007\n\nUpdate transaction\nUpdate process data\n\nSTART_AUFH_ZUK_ZUORDNUNG\nTrigger event\n\n8. Aufhebung der Zuordnung des LFZ zur Marklokat…\nAS4 · PI 55038\n\nUpdate transaction\nUpdate process data\n\nSTART_ENDE_ZUORDNUNG\nTrigger event\n\n11. Beendigung der Zuordnung des MSB zur Markloka…\nAS4 · PI 55611\n\nUpdate transaction\nUpdate process data\n\nSTART_ENDE_ZUORDNUNG\nTrigger event\n\n13. Aufhebung der Zuordnung des MSBZ zur Marktlok…\nAS4 · PI 55611\n\nUpdate transaction\nUpdate process data\n"} titel="NB" /> ## Process steps ### Announcement of the termination of the assignment of the LF to the market location or tranche
**Check identifiers** - [55007](/en/schnittstellen/202604/pruefi/UTILMD/PI_55007) — Deregistration / termination of the assignment · AS4
**Flow**
  1. **Prozessauslöser** [`START_LIEFERENDE`](/en/api/202604/ausloeser-nb/start-lieferende) Ausprobieren The backend triggers this step with this event.
  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.
### Response to announcement of the termination of the assignment of the LF to the market location or tranche
**Check identifiers** - [55008](/en/schnittstellen/202604/pruefi/UTILMD/PI_55008) — Confirmation deregistration · AS4 - [55009](/en/schnittstellen/202604/pruefi/UTILMD/PI_55009) — Rejection deregistration · AS4
**Flow**
  1. Message from **LF** · AS4
    **Response per decision tree** - `55008`, `55009` → [E_0609](/en/referenz/202604/ebd/E_0609) · LF · Check deregistration
  2. **APERAK checks** - `55008`, `55009` → `Z33`
  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 with the data of the incoming message.
### Termination of the assignment of the LF to the market location or tranche due to missing response
**Check identifiers** - [55007](/en/schnittstellen/202604/pruefi/UTILMD/PI_55007) — Deregistration / termination of the assignment · AS4
**Flow**
  1. **Prozessauslöser** [`START_LIEFERENDE`](/en/api/202604/ausloeser-nb/start-lieferende) Ausprobieren The backend triggers this step with this event.
  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.
### Cancellation of the assignment of the LFZ to the market location or tranche
**Check identifiers** - [55038](/en/schnittstellen/202604/pruefi/UTILMD/PI_55038) — Cancellation of a fut. assignment · AS4
**Flow**
  1. **Prozessauslöser** [`START_AUFH_ZUK_ZUORDNUNG`](/en/api/202604/ausloeser-nb/start-aufh-zuk-zuordnung) \"\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"sparte\": \"\",\n \"transaktionsgrund\": \"\",\n \"transaktionsgrundergaenzung\": \"\",\n \"vertragsbeginn\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_AUFH_ZUK_ZUORDNUNG\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  2. **Load data for processing** - [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 grid usage contract](/en/api/202604/backend-lesen/getgridusagecontractbasic#netznutzungsvertrag-lesen) `GET /getGridUsageContractBasic` Try it
  3. Message to **LFZ** · AS4
  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.
### Termination of the assignment of the MSB to the market location or metering location
**Check identifiers** - [55611](/en/schnittstellen/202604/pruefi/UTILMD/PI_55611) — Termination of the assignment · AS4
**Flow**
  1. **Prozessauslöser** [`START_ENDE_ZUORDNUNG`](/en/api/202604/ausloeser-nb/start-ende-zuordnung) \"\n }\n ],\n \"NETZNUTZUNGSVERTRAG\": [\n {\n \"vertragsende\": \"\"\n }\n ],\n \"TRANCHE\": [\n {\n \"tranchenId\": \"\"\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"marktrolle\": \"\",\n \"rollencodenummer\": \"\"\n },\n \"sparte\": \"\",\n \"transaktionsgrund\": \"\",\n \"transaktionsgrundergaenzung\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_ENDE_ZUORDNUNG\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  2. Message to **MSB** · 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.
### Cancellation of the assignment of the MSBZ to the market location or metering location
**Check identifiers** - [55611](/en/schnittstellen/202604/pruefi/UTILMD/PI_55611) — Termination of the assignment · AS4
**Flow**
  1. **Prozessauslöser** [`START_ENDE_ZUORDNUNG`](/en/api/202604/ausloeser-nb/start-ende-zuordnung) \"\n }\n ],\n \"NETZNUTZUNGSVERTRAG\": [\n {\n \"vertragsende\": \"\"\n }\n ],\n \"TRANCHE\": [\n {\n \"tranchenId\": \"\"\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"marktrolle\": \"\",\n \"rollencodenummer\": \"\"\n },\n \"sparte\": \"\",\n \"transaktionsgrund\": \"\",\n \"transaktionsgrundergaenzung\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_ENDE_ZUORDNUNG\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  2. Message to **MSBZ** · 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.
Decision trees of this process | EBD | Name | |---|---| | [E_0609](/referenz/202604/ebd/E_0609) | Check deregistration |
## Process information Wording of the consolidated version, profile ch. 2.5.2.1, pp. 57–58.
  1. ### Preconditions - In the case of a consuming market location: LF is assigned to the market location. - In the case of a generating market location or a tranche: LF is assigned to the market location or tranche. The following cases are possible: - Termination of the assignment of the LF to a market location - Termination of the assignment of the LF to a tranche of a market location - Termination of the assignment of the LF to all tranches of a market location. The use case “End of supply from NB to LF” must be carried out separately for each tranche.
  2. ### Results - In the case of a consuming market location: - The NB executes the use cases „[Billing data grid usage settlement](/en/prozessdoku/202604/NB/GPKE-Teil2-abrechnungsdaten-netznutzungsabrechnung)“ and „[Billing data balancing group settlement](/en/prozessdoku/202604/NB/GPKE-Teil2-abrechnungsdaten-bilanzkreisabrechnung)“. - Where applicable, the NB executes the use case „[Beginning of the replacement supply / default supply](/en/prozessdoku/202604/NB/GPKE-Teil2-beginn-der-ersatz-grundversorgung)“. - In the case of decommissioning: If the market location is assigned to Model 2, NB ends the metering point for NGZ. - In the case of a generating market location or a tranche: - The NB executes the use case „[Billing data balancing group settlement](/en/prozessdoku/202604/NB/GPKE-Teil2-abrechnungsdaten-bilanzkreisabrechnung)“. - Where applicable, the NB executes the use case „Establishing a 100% LF assignment to a generating market location“. - In the case of the decommissioning of a market location: If the location bundle is not decommissioned, NB informs the market partners of the locations that remain active about the change of the location bundle with the use case "master data change" (here: “[Master data change originating from NB (responsible)](/en/prozessdoku/202604/NB/GPKE-Teil4-stammdatenaenderung-vom-nb-verantwortlich-ausgehend)”) (GPKE Part 4).
  3. ### Error case #### Result in the error case The LF remains assigned to the market location or tranche.
  4. ### Further requirements - Note: A market location that cannot be assigned to any LF and for which a statutory basic or substitute supply obligation under § 36 and § 38 EnWG may exist is assigned to the E/G by NB via the use case “[Start of replacement supply / default supply](/en/prozessdoku/202604/NB/GPKE-Teil2-beginn-der-ersatz-grundversorgung)”. - If, as a result of the termination of the assignment, a market location can in future be assigned neither to the E/G nor to a contractually designated replacement supplier or any other LF, NB must interrupt the grid connection use at the market location.
  5. ### Trigger - Decommissioning of a market location - the use case „[Deactivation of an allocation authorization of the BKV at the NB](/en/prozessdoku/202604/NB/MaBiS-deaktivierung-einer-zuordnungsermaechtigung-des-bkv-beim-nb)“ has been carried out and, for the affected market location or tranche, there is no assignment to a BK with an active allocation authorization for the time period immediately following the deactivation - for the market location, the time series type has changed as of the stated point in time, and no valid allocation authorization exists for that type **Runs beforehand:** [End of supply from LF to NB](/en/prozessdoku/202604/NB/GPKE-Teil2-lieferende-von-lf-an-nb) — these processes name the one shown here in their result.
  6. ### First message The party involved on this page sends this itself: “Announcement of the termination of the assignment of the LF to the market location or tranche” to **LF** (step 1).
  7. ### Objective The assignment of the LF to the market location or tranche has ended.
## 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/GPKE-Teil2-lieferende-von-nb-an-lf) — LF - [View LFZ](/en/prozessdoku/202604/LF--LFZ/GPKE-Teil2-lieferende-von-nb-an-lf) — future supplier · market role LF - [View MSB](/en/prozessdoku/202604/MSB/GPKE-Teil2-lieferende-von-nb-an-lf) — MSB - [View MSBZ](/en/prozessdoku/202604/MSB--MSBZ/GPKE-Teil2-lieferende-von-nb-an-lf) — future metering point operator · 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.*