# [NB] START_AUFH_ZUK_ZUORDNUNG
<span hidden data-pagefind-meta={"title:Trigger event START_AUFH_ZUK_ZUORDNUNG — Market role NB (FV 202604)"} />

Marktrolle **NB** · Formatversion **202604** · BO4E-Schema **1.7.8**

## Master data

Exactly one of the following 2 check identifiers is permitted under this topic — which one is decided by the event process.

| Prüfi | Scope | Use case | Regulatory determination | Communication |
|---|---|---|---|---|
| [PI_44038](/schnittstellen/202604/pruefi/UTILMD_GAS/PI_44038) | UTILMD_GAS | Information notification on the cancellation of a future assignment | GeLi Gas 2.0 | NB → LF (future LF) |
| [PI_55038](/schnittstellen/202604/pruefi/UTILMD/PI_55038) | UTILMD | Revocation of a future assignment | GPKE part 2 | NB → LFZ |

The master data of the 2 check identifiers in **one** structure — one column per check identifier, as in the application handbook. A value in the column means that the field belongs to this check identifier: **Must** where its specification requires it, otherwise **May**. An empty cell means »not part of it«, not »unknown«. The first one is preselected; the bar above the table adds the others.

<Handbuchsatz>

<div className="maco-tabellenrahmen">

| Structure (BO4E) | Description | Format | <span className="hbs-p" title="Informationsmeldung zur Aufhebung einer zuk. Zuordnung">44038</span> | <span className="hbs-p" title="Aufhebung einer zuk. Zuordnung">55038</span> | Condition |
|---|---|---|---|---|---|
| <span className="hbs-g hbs-e0">**stammdaten**</span> | — | object | May | May | — |
| <span className="hbs-g hbs-e1">**BILANZIERUNG** <span className="hbs-liste">[ ]</span></span> | — | object[] | May | — | — |
| <span className="hbs-f hbs-e2">[bilanzierungsende](/en/bo4e/202604/bo/Bilanzierung#bilanzierungsende)</span><span className="hbs-nr">00010</span> | Exclusive end of balancing | string (date-time) | May | — | — |
| <span className="hbs-g hbs-e1">**MARKTLOKATION** <span className="hbs-liste">[ ]</span> <span className="hbs-pflicht">\*</span></span> | — | object[] | Must | May | — |
| <span className="hbs-f hbs-e2">[marktlokationsId](/en/bo4e/202604/bo/Marktlokation#marktlokationsid) <span className="hbs-pflicht">\*</span></span><span className="hbs-nr">00020</span> | Identification number of a market location at which energy is either<br/>consumed or generated | string | Must | May | — |
| <span className="hbs-g hbs-e1">**NETZNUTZUNGSVERTRAG** <span className="hbs-liste">[ ]</span></span> | — | object[] | May | May | — |
| <span className="hbs-f hbs-e2">[vertragsbeginn](/en/bo4e/202604/bo/Vertrag#vertragsbeginn)</span><span className="hbs-nr">00030</span> | Specifies when the contract begins. | string (date-time) | May | May | — |
| <span className="hbs-g hbs-e1">**TRANCHE** <span className="hbs-liste">[ ]</span></span> | — | object[] | — | May | — |
| <span className="hbs-f hbs-e2">[tranchenId](/en/bo4e/202604/bo/Tranche#tranchenid)</span><span className="hbs-nr">00040</span> | tranchenId | string | — | May | — |

</div>

</Handbuchsatz>

## Chain of this trigger

The event triggers the message.

| Message | Responses | Write call after the response |
|---|---|---|
| [44038](/schnittstellen/202604/pruefi/UTILMD_GAS/PI_44038) | — | — |
| [55038](/schnittstellen/202604/pruefi/UTILMD/PI_55038) | — | — |

This event triggers steps in these role views:

| Process | Party involved | Rulebook | Division |
|---|---|---|---|
| [Start of supply](/en/prozessdoku/202604/NB/GPKE-Teil2-lieferbeginn) | NB | GPKE part 2 | Electricity |
| [End of supply from NB to LF](/en/prozessdoku/202604/NB/GPKE-Teil2-lieferende-von-nb-an-lf) | NB | GPKE part 2 | Electricity |
| [Start of supply](/en/prozessdoku/202604/NB/geli-gas-2-0-lieferbeginn) | NB | GeLi Gas 2.0 | Gas |

## Transaction data

The interchange envelope of the message. Mandatory fields must be set on the trigger call.

| Field | Type | Mandatory | Description |
|---|---|---|---|
| [sparte](/en/bo4e/202604/cdoc/Transaktionsdaten#sparte) | [Enum Sparte](/en/bo4e/202604/enum/Sparte) | **yes** | Contains information about the division Values: `STROM`, `GAS`, `FERNWAERME`, `NAHWAERME`, `WASSER`, `ABWASSER` |
| [transaktionsgrund](/en/bo4e/202604/cdoc/Transaktionsdaten#transaktionsgrund) | string | **yes** | The transaction reason describes the business transaction for the category in more detail / UTILMD STS+7++###+ZW4+E03 |
| [transaktionsgrundergaenzung](/en/bo4e/202604/cdoc/Transaktionsdaten#transaktionsgrundergaenzung) | string | **yes** | Supplement to the transaction reason / UTILMD STS+7++E01+###+E03 |
| [vertragsbeginn](/en/bo4e/202604/cdoc/Transaktionsdaten#vertragsbeginn) | string (date-time) | **yes** | Contract start date / DTM+92 |
| `pruefidentifikator` | — | no | Determined dynamically in the event process (decision basis: sparte). A value supplied by the sender is ignored. Check identifiers possible in the topic — 44038, 55038. Possible values: `44038`, `55038` |
| [absender › rollencodenummer](/en/bo4e/202604/bo/Marktteilnehmer#rollencodenummer) | string | no | Specifies the code value of the market role. |
| [empfaenger › rollencodenummer](/en/bo4e/202604/bo/Marktteilnehmer#rollencodenummer) | string | no | Specifies the code value of the market role. |

## Additional data

`eventname` is fixed to **START_AUFH_ZUK_ZUORDNUNG**. This value stays German in the English version as well, because Camunda correlates on it.

| Field | Type | Mandatory | Description |
|---|---|---|---|
| `prozessId` | string | **yes** | — |
| `eventname` | const `START_AUFH_ZUK_ZUORDNUNG` | **yes** | — |

## Response

**The trigger assigns its own `businessKey`.** The MACO APP adopts **neither** the `businessKey` **nor** the `prozessId` of the calling system as the identifier of the process instance. The `businessKey` of the response is created when the process starts and is new. The body of this call carries no `businessKey` field; there is thus no place where a key of your own could be passed in. The `prozessId` passed in (a mandatory field of this call) remains the document number of the backend: it comes back in `zusatzdaten.prozessId` of the callbacks — mandatory there only for MaloIdent (03002/03003), otherwise optional.

**201 — Success.** Success message for the process data API call.

| Field | Type | Mandatory | Description |
|---|---|---|---|
| `businessKey` | string (uuid) | **yes** | Unique identifier of the business process |
| `message` | string | **yes** | Message with details of the triggered event — example from the source: `received event XXXXXXXXXXXX with id at 2024-08-08T12:58:22Z and started process with businessKey 4c7170ed-3518-41ee-8582-39ab65b00107` |

**400 — Error.** Error message for the process data API call.

| Field | Type | Mandatory | Description |
|---|---|---|---|
| `errorCode` | string | no | Error identifier — example from the source: `400` |
| `message` | string | no | Technical message — example from the source: `Validation Failed` |

Which body the callbacks `updateProcessData` and `createProcessData` send is measured against the NiFi flow of the MACO APP: `{stammdaten, transaktionsdaten, zusatzdaten}` without an interchange envelope, the `businessKey` inside `zusatzdaten`. This is not measured against a recorded call, and not for MaloIdent (03002/03003).

What distinguishes `businessKey`, `prozessId` and `targetBusinessKey` is explained on [Keys and assignment](/en/schnittstellen/schluessel).