# Transmission of data status of the delta time series transfer from BIKO to ÜNB and NB — View NB The BIKO transmits the data status to the ÜNB and NB for the DZÜ - after receipt of the DZÜ from the ÜNB (start with status „check data or - after receipt of the validation notification from the NB or - after use of the aggregated time series for the BKA (without KBKA) or the KBKA. The data status is sent regardless of whether it has changed or not. ## Process flow from the perspective of the NB \nSystem diagram: Übermittlung Datenstatus des Deltazeitreihenübertrags vom BIKO an ÜNB und NB — view of NB\n\n\nCustomer backend system\n\nMACO APP · NB\n\nMarket partner\n\n\n\n1. Datenstatus\n\nBIKO\n\nAS4\n21004\n\nAPERAK check: Z33\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung Datenstatus des Deltazeitreihenübertrags vom BIKO an ÜNB und NB — view of NB\n\n\nBackend (customer)\n\n\nMACO APP · NB\n\n\nBIKO\n\n\nÜNB\n\n\n1. Datenstatus\nAS4 · PI 21004 · E_0059, E_0060…\nE_0059 — Datenstatus nach erfolgter Bilanzkreisabrechnung vergeben\nE_0061 — Datenstatus nach Vorliegen einer Prüfmitteilung vergeben\n\nCreate transaction\nCreate process data\n\n2. Datenstatus\nAS4 · PI 21003 · E_0059, E_0060…\nE_0059 — Datenstatus nach erfolgter Bilanzkreisabrechnung vergeben\nE_0061 — Datenstatus nach Vorliegen einer Prüfmitteilung vergeben\n"} titel="NB" /> ## Process steps ### Data status
**Check identifiers** - [21004](/en/schnittstellen/202610/pruefi/IFTSTA/PI_21004) — Status message · AS4
**Flow**
  1. Message from **BIKO** · AS4
    **Response per decision tree** - `21004` → [E_0059](/en/referenz/202610/ebd/E_0059) · BIKO · Assign data status after completed balancing group settlement - `21004` → `E_0060` - `21004` → [E_0061](/en/referenz/202610/ebd/E_0061) · BIKO · Assign data status once a validation notification is available
  2. **APERAK checks** - `21004` → `Z33`
  3. **Write endpoint** - Transaction created — [Create process data](/en/api/202610/backend-schreiben-nb/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
### Data status This step runs between other market partners and is not relevant for this view.
**Check identifiers** - [21003](/en/schnittstellen/202610/pruefi/IFTSTA/PI_21003) — Status message · AS4
**Response per decision tree** - `21003` → [E_0059](/en/referenz/202610/ebd/E_0059) · BIKO · Assign data status after completed balancing group settlement - `21003` → `E_0060` - `21003` → [E_0061](/en/referenz/202610/ebd/E_0061) · BIKO · Assign data status once a validation notification is available
Decision trees of this process | EBD | Name | |---|---| | [E_0059](/referenz/202610/ebd/E_0059) | Assign data status after completed balancing group settlement | | [E_0061](/referenz/202610/ebd/E_0061) | Assign data status once a validation notification is available |
## Process information Wording of the consolidated version, profile ch. 12.7.1, pp. 176–177.
  1. ### Preconditions - The BIKO has a DZÜ transmitted by the ÜNB. - The BIKO has forwarded the DZÜ transmitted by the ÜNB to the NB.
  2. ### Results All systems of NB, BIKO and ÜNB hold the same data status for a version of the aggregated time series.
  3. ### Error case #### Result in the error case The BIKO informs all affected market participants and, after the error has been corrected, ensures that the correct data status is assigned to all affected DZÜ. #### Error cases The algorithm applied by the BIKO for assigning the data status is faulty.
  4. ### First message **BIKO** sends “Data status” (step 1). From here on, it is the turn of the party involved on this page.
  5. ### Objective The data status managed by the BIKO is available at the ÜNB and at the NB for the DZÜ.
## 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 BIKO](/en/prozessdoku/202610/BIKO/MaBiS-uebermittlung-datenstatus-des-deltazeitreihenuebertrags-vom-biko-an-uenb-und-nb) — BIKO - [View ÜNB](/en/prozessdoku/202610/UENB/MaBiS-uebermittlung-datenstatus-des-deltazeitreihenuebertrags-vom-biko-an-uenb-und-nb) — 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.* The connector table lists no write call for these steps. Derived from the process flow: the process begins for the own role with their message, so the transaction is created. Applies to: [1](#schritt-1) 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) For these decision trees of the process there is no source in this format version: - `E_0060`