# Transmission of price sheet “Metering point operation with iMS towards NB” from MSB to NB — MSB view The MSB transmits its electronic price sheet to the NB if the NB does not have the electronic price sheet or if at least one price component of the price sheet has changed. ## Process flow from the perspective of the MSB \nSystem diagram: Übermittlung Preisblatt „Messstellenbetrieb mit iMS gegenüber dem NB“ vom MSB an NB — view of MSB\n\n\nCustomer backend system\n\nMACO APP · MSB\n\nMarket partner\n\n\n\nProcess trigger received\n\nSTART_VERSAND_PREISBLA\nTT_IMS\n\nAPI\n\n1. Preisblatt\n\n\nNB\n\nAS4\n27002\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung Preisblatt „Messstellenbetrieb mit iMS gegenüber dem NB“ vom MSB an NB — view of MSB\n\n\nBackend (customer)\n\n\nMACO APP · MSB\n\n\nNB\n\n\nSTART_VERSAND_PREISBLATT_IMS\nTrigger event\n\n1. Preisblatt\nAS4 · PI 27002\n\nUpdate transaction\nUpdate process data\n"} titel="MSB" /> ## Process steps ### Price sheet
**Check identifiers** - [27002](/en/schnittstellen/202610/pruefi/PRICAT/PI_27002) — Price sheets for MSB services · AS4
**Flow**
  1. **Prozessauslöser** [`START_VERSAND_PREISBLATT_IMS`](/en/api/202610/ausloeser-msb/start-versand-preisblatt-ims) \"\n }\n }\n ]\n },\n \"transaktionsdaten\": {\n \"absender\": {\n \"marktrolle\": \"\",\n \"rollencodenummer\": \"\"\n },\n \"empfaenger\": {\n \"marktrolle\": \"\",\n \"rollencodenummer\": \"\"\n },\n \"kategorie\": \"\",\n \"pruefidentifikator\": \"\",\n \"sparte\": \"\"\n },\n \"zusatzdaten\": {\n \"eventname\": \"START_VERSAND_PREISBLATT_IMS\",\n \"prozessId\": \"\"\n }\n}"} security={[{"bearer": []}]}>Ausprobieren The backend triggers this step with this event.
  2. Message to **NB** · AS4
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202610/backend-schreiben-msb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
## Process information Wording of the consolidated version, profile ch. 5.1, p. 84.
  1. ### Preconditions - The EDIFACT communication between MSB and NB has been established. - The NB does not have the current or updated price sheet of the MSB.
  2. ### Results The billing of the metering point operation with iMS towards the NB can be created.
  3. ### Error case #### Result in the error case In the error cases, the price sheet is transmitted again. #### Error cases - Price sheet contains an error - Price sheet was not transmitted in the current version - Price sheet was not transmitted in full - Price sheet does not begin at 00:00 of a calendar day.
  4. ### First message The party involved on this page is itself the sender of: „Price sheet“ to **NB** (step 1).
  5. ### Objective The NB has the electronic price sheet “Metering point operation with iMS towards the NB” of the MSB.
## 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/202610/NB/WiM-Teil1-uebermittlung-preisblatt-messstellenbetrieb-mit-ims-gegenueber-dem-nb-vom-msb-an-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.*