# Restoration of grid connection use at start of supply — View NB For a disconnected market location, the NB triggers the restoration of the grid connection use. The NB informs, where applicable, the MSB and, where applicable, the ÜNB about the result of the reconnection order. ## Process flow from the perspective of the NB \nSystem diagram: Wiederherstellung der Anschlussnutzung bei Lieferbeginn — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\nProcess trigger received\n\n2 alternative events\n\nAPI\n\nLoad data for processing\n\n\n2 read APIs called\n\nAPI\nlisted at the step\n\n1. Information über\nEntsperrauftrag\n\n\nMSB\n\nAS4\n21040\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\n2 alternative events\n\nAPI\n\nLoad data for processing\n\n\n2 read APIs called\n\nAPI\nlisted at the step\n\n2. Ergebnis des\nEntsperrauftrags\n\n\nMSB\n\nAS4\n21039\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\n2 alternative events\n\nAPI\n\nLoad data for processing\n\n\n2 read APIs called\n\nAPI\nlisted at the step\n\n3. Ergebnis des\nEntsperrauftrags\n\n\nÜNB\n\nAS4\n21039\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Wiederherstellung der Anschlussnutzung bei Lieferbeginn — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nMSB\n\n\nÜNB\n\n\n2 alternative events\nTrigger event\n\n1. Information über Entsperrauftrag\nAS4 · PI 21040\n\nUpdate transaction\nUpdate process data\n\n2 alternative events\nTrigger event\n\n2. Ergebnis des Entsperrauftrags\nAS4 · PI 21039 · E_0487\nE_0487 — Prüfen, ob Entsperrauftrag erfolgreich\n\nUpdate transaction\nUpdate process data\n\n2 alternative events\nTrigger event\n\n3. Ergebnis des Entsperrauftrags\nAS4 · PI 21039 · E_0487\nE_0487 — Prüfen, ob Entsperrauftrag erfolgreich\n\nUpdate transaction\nUpdate process data\n"} titel="NB" /> ## Process steps ### Information on the reconnection order
**Check identifiers** - [21040](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21040) — Reconnection order info · AS4
**Flow**
  1. **Process trigger** - [`START_AUFTRAGSSTATUS`](/en/api/202604/ausloeser-nb/start-auftragsstatus) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"antwortstatus\": \"\",\n \"antwortstatusCodeliste\": \"\",\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_AUFTRAGSSTATUS\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren - [`START_WIEDERHERST_LB`](/en/api/202604/ausloeser-nb/start-wiederherst-lb) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_WIEDERHERST_LB\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with one of these events.
  2. **Load data for processing** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - `LESEN_STATUSMITTEILUNG_BASIS`
  3. Message to **MSB** · 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.
### Result of the reconnection order
**Check identifiers** - [21039](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21039) — Order status (disconnect) · AS4
**Flow**
  1. **Process trigger** - [`START_AUFTRAGSSTATUS`](/en/api/202604/ausloeser-nb/start-auftragsstatus) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"antwortstatus\": \"\",\n \"antwortstatusCodeliste\": \"\",\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_AUFTRAGSSTATUS\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren - [`START_WIEDERHERST_LB`](/en/api/202604/ausloeser-nb/start-wiederherst-lb) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_WIEDERHERST_LB\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with one of these events.
  2. **Load data for processing** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - `LESEN_STATUSMITTEILUNG_BASIS`
  3. Message to **MSB** · AS4
    **Response per decision tree** - `21039` → [E_0487](/en/referenz/202604/ebd/E_0487) · NB · Check whether the reconnection order was successful
  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.
### Result of the reconnection order
**Check identifiers** - [21039](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21039) — Order status (disconnect) · AS4
**Flow**
  1. **Process trigger** - [`START_AUFTRAGSSTATUS`](/en/api/202604/ausloeser-nb/start-auftragsstatus) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"antwortstatus\": \"\",\n \"antwortstatusCodeliste\": \"\",\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_AUFTRAGSSTATUS\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren - [`START_WIEDERHERST_LB`](/en/api/202604/ausloeser-nb/start-wiederherst-lb) \"\n }\n ],\n \"STATUSMITTEILUNG\": [\n {\n \"positionsdaten\": [\n \"\"\n ]\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"rollencodenummer\": \"\"\n },\n \"fertigstellungsdatum\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_WIEDERHERST_LB\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with one of these events.
  2. **Load data for processing** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - `LESEN_STATUSMITTEILUNG_BASIS`
  3. Message to **ÜNB** · AS4
    **Response per decision tree** - `21039` → [E_0487](/en/referenz/202604/ebd/E_0487) · NB · Check whether the reconnection order was successful
  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.
Decision trees of this process | EBD | Name | |---|---| | [E_0487](/referenz/202604/ebd/E_0487) | Check whether the reconnection order was successful |
## Process information Wording of the consolidated version, profile ch. 3.5.4.1, p. 114.
  1. ### Preconditions - In the case of the assignment of LFN to the market location within the use case “[Start of supply](/en/prozessdoku/202604/NB/GPKE-Teil2-lieferbeginn)”, NB determines that the registration relates to a disconnected market location. - The grid connection use is interrupted by means of the use case „[Interruption of the grid connection use (disconnect) on the instruction of the LF](/en/prozessdoku/202604/NB/GPKE-Teil2-unterbrechung-der-anschlussnutzung-sperren-auf-anweisung-des-lf)“. It is therefore a consuming market location.
  2. ### Results The grid connection use via the affected market location is possible again.
  3. ### Error case #### Result in the error case - The grid connection use via the affected market location is still not possible. - The parties involved clarify the further procedure bilaterally. #### Error cases The grid connection use is not interrupted by means of the use case “[Interruption of the grid connection use (disconnect) at the instruction of the LF](/en/prozessdoku/202604/NB/GPKE-Teil2-unterbrechung-der-anschlussnutzung-sperren-auf-anweisung-des-lf)”.
  4. ### Further requirements If the reconnection of the market location is carried out with the involvement of the MSB, these steps take place bilaterally outside this process standardisation.
  5. ### Trigger **Runs beforehand:** [Start of supply](/en/prozessdoku/202604/NB/GPKE-Teil2-lieferbeginn) — these processes name the one shown here in their result.
  6. ### First message The party involved on this page is itself the sender of: „Information on reconnection order“ to **MSB** (step 1).
  7. ### Objective The grid connection use via the affected market location is possible again.
## 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 MSB](/en/prozessdoku/202604/MSB/GPKE-Teil2-wiederherstellung-der-anschlussnutzung-bei-lieferbeginn) — MSB - [View ÜNB](/en/prozessdoku/202604/UENB/GPKE-Teil2-wiederherstellung-der-anschlussnutzung-bei-lieferbeginn) — 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.* These read accesses are not listed in the API catalogue of this format version; the step therefore shows only their command, without address and without button. Applies to: [1](#schritt-1), [2](#schritt-2), [3](#schritt-3)