# Transmission of price sheet B of MSB from MSB to NB and LF — MSB view ## Process flow from the perspective of the MSB \nSystem diagram: Übermittlung Preisblatt B des MSB vom MSB an NB und LF — 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 B des MSB\n\n\nNB\n\nAS4\n27002\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n\nProcess trigger received\n\n\nSTART_VERSAND_PREISBLA\nTT_IMS\n\nAPI\n\n2. Preisblatt B des MSB\n\n\nLF\n\nAS4\n27002\n\nUpdate transaction\n\n\nUpdate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung Preisblatt B des MSB vom MSB an NB und LF — view of MSB\n\n\nBackend (customer)\n\n\nMACO APP · MSB\n\n\nNB\n\n\nLF\n\n\nSTART_VERSAND_PREISBLATT_IMS\nTrigger event\n\n1. Preisblatt B des MSB\nAS4 · PI 27002\n\nUpdate transaction\nUpdate process data\n\nSTART_VERSAND_PREISBLATT_IMS\nTrigger event\n\n2. Preisblatt B des MSB\nAS4 · PI 27002\n\nUpdate transaction\nUpdate process data\n"} titel="MSB" /> ## Process steps ### Price sheet B of the MSB
**Check identifiers** - [27002](/en/schnittstellen/202604/pruefi/PRICAT/PI_27002) — Price sheets for MSB services · AS4
**Flow**
  1. **Prozessauslöser** [`START_VERSAND_PREISBLATT_IMS`](/en/api/202604/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/202604/backend-schreiben-msb/updateprocessdata#prozessdaten-aktualiseren) `POST /updateProcessData` Try it out Updates the existing transaction in the backend once the message has been created.
### Price sheet B of the MSB
**Check identifiers** - [27002](/en/schnittstellen/202604/pruefi/PRICAT/PI_27002) — Price sheets for MSB services · AS4
**Flow**
  1. **Prozessauslöser** [`START_VERSAND_PREISBLATT_IMS`](/en/api/202604/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 **LF** · AS4
  3. **Write endpoint** - Transaction updated — [Update process data](/en/api/202604/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
  1. ### First message The party involved on this page is itself the sender of: „Price sheet B of the MSB“ to **NB** (step 1).
## 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 LF](/en/prozessdoku/202604/LF/awh-prozesse-zur-anderung-der-technik-an-lokationen-ubermittlung-preisblatt-b-des-msb-vom-msb-an-nb-und-lf) — LF - [View NB](/en/prozessdoku/202604/NB/awh-prozesse-zur-anderung-der-technik-an-lokationen-ubermittlung-preisblatt-b-des-msb-vom-msb-an-nb-und-lf) — NB *The source provides no use case profile for this process — objective, precondition and result are not recorded there.* *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.* :::caution{title="Step sequence reconstructed"} For this process, the BNetzA consolidated version carries no sequence diagram. The steps are reconstructed from the BDEW check identifier table: grouped by the designation, ordered by the process step. The method agrees with the consolidated version in 200 of 200 cases that can be cross-checked — the individual line is nevertheless not editorially reviewed. Check it against the rulebook before adopting it into an implementation specification. :::