# Deactivation of an allocation authorization of the BKV at the NB — BKV view By transmitting the deactivation of the allocation authorization, the BKV withdraws from the NB the approval to assign market locations of the named ZRT that are located in the BG to its BK by means of a LF. The authorization is withdrawn per ZRT, BG, BK and LF from a specific point in time. A deactivation is possible only for the future, not retroactively. In the error case, the NB clarifies this manually with the BKV ## Process flow from the perspective of the BKV \nSystem diagram: Deaktivierung einer Zuordnungsermächtigung des BKV beim NB — view of BKV\n\n\nCustomer backend system\n\nMACO APP · BKV\n\nMarket partner\n\n\n\n1. Deaktivierung der\nZuordnungsermächtigung\n\nNB\n\nAS4\n55072\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Deaktivierung einer Zuordnungsermächtigung des BKV beim NB — view of BKV\n\n\nBackend (customer)\n\n\nMACO APP · BKV\n\n\nNB\n\n\n1. Deaktivierung der Zuordnungsermächtigung\nAS4 · PI 55072\n\nUpdate transaction\nUpdate process data\n"} titel="BKV" /> ## Process steps ### Deactivation of the allocation authorization
**Check identifiers** - [55072](/en/schnittstellen/202604/pruefi/UTILMD/PI_55072) — Deactivation of the allocation authorization · AS4
**Flow**
  1. Message to **NB** · AS4
  2. **Write endpoint** - Transaction updated — `AKTUALISIEREN_PROZESSDATEN` Updates the existing transaction in the backend once the message has been created.
## Process information Wording of the consolidated version, profile ch. 10.3.1, p. 122.
  1. ### Preconditions The allocation authorization to be deactivated is still active.
  2. ### Results - No further assignments with validity after the deactivation date can be carried out. - For all market locations of this ZRT, in the BG that are assigned to the BK, NB must ensure as of the deactivation date that no market location is assigned to the BK for this LF.
  3. ### First message The party involved on this page is itself the sender of: „Deactivation of the allocation authorization“ to **NB** (step 1).
  4. ### Objective The NB has received the deactivation of the allocation authorization and can apply it correctly.
## 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 NB](/en/prozessdoku/202604/NB/MaBiS-deaktivierung-einer-zuordnungsermaechtigung-des-bkv-beim-nb) — NB *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 source does not yet name the event that triggers these steps. Applies to: [1](#schritt-1) For this market role there is no write catalog; the step therefore shows only the command of the write call, without address and without button. Applies to: [1](#schritt-1)