| Step | SRV | Description | Comment |
|---|---|---|---|
| 1 | 8.11 | Update HAN Device Log | Change in InstallCode field attribute – DUIS 3.0 onwards. |
| 1.1 | — | Wait For Device Alert 0x8F69/N24 | Energy supplier will not receive alert 0x8F69 if ACB certificates are in Device Trust Anchor Slot |
| 2 | 8.9 | Read Device Log | Optional. In the case of N25, this will help verify that SR8.11 was successful. |
| 3 | 8.14.1 | Communications Hub Status Update- Install Success | If this is not sent, the CSP will not be able to establish the address of the CH efficiently this will cause challenges in the incident investigation process |
| 4 | 6.24.1 | Retrieve Device Security Credentials (KRP) | This is only optional if the installing supplier does not know what certificates are inside the supplier trust anchor cell. |
| 5 | 6.23 | Update Security Credential (CoS) | This SR will only be necessary if ACB certificates are not pre-populated in the Trust Anchor Cell during manufacture. This should only be used if the supplier certs in the Supplier Trust Anchor cell belong to another supplier. |
| 6 | 6.15.1 | Update Security Credentials (KRP) | This SR will be necessary if the supplier certs in the supplier trust anchor cell are those of the installing supplier. |
| 7 | 6.21 | Request Handover Of DCC Controlled Device | Update Supplier Certificates (GSME). Default process which should be used if the ACB certs are in the Trust anchor cell of the supplier. |
| 8 | 6.21 | Request Handover Of DCC Controlled Device | Update Supplier Certificate (GPF) |
| 9 | 8.1.1 | Commission Device | — |
| 10 | 8.7.2 | Join Service (Non-Critical) | Join GPF with GSME. If SR is not sent, the GPF would not mirror GSME data (TS1671) |
| 11 | 6.20.1 | Set Device Configuration (Import MPxN) | — |
| 12 | 1.1.1 | Update Import Tariff (Primary Element) | — |
| 13 | 1.6 | Update Payment Mode | — |
| 14 | 6.8 | Update Device Configuration (Billing Calendar) | — |
| 15 | 5.1 | Create Schedule | — |
| 16 | 6.22 | Configure Alert Behaviour | — |
| 17 | 4.4.2 | Retrieve Change of Mode/Tariff Triggered Billing Data Log | — |
| 18 | 3.4 | Update Supplier Name | — |
| 19 | 6.6 | Update Device Configuration (Gas Conversion) | Update Calorific Values |
| 20 | 6.7 | Update Device Configuration (Gas Flow) | For SMETS2 V4 onward |
| 21 | 1.5 | Update Meter Balance | — |
| 22 | 6.21 | Request Handover Of DCC Controlled Device | GT Certificates |
| 23 | 6.17 | Issue Security Credential | Digital Signature – GSME |
| 23.1 | — | Retrieve Certificate From SMKI | — |
| 24 | 6.15.2 | Update Security Credential (Device) | Digital Signature – GSME |
| 25 | 6.17 | Issue Security Credential | Key Agreement Key – GSME |
| 25.1 | — | Retrieve Certificate From SMKI | — |
| 26 | 6.15.2 | Update Security Credential (Device) | Key Agreement Key – GSME |
| 27 | 6.17 | Issue Security Credential | Digital Signature - GPF |
| 27.1 | — | Retrieve Certificate From SMKI | — |
| 28 | 6.15.2 | Update Security Credential (Device) | Digital Signature - GPF |
| 29 | 6.17 | Issue Security Credential | Key Agreement Key – GPF |
| 29.1 | — | Retrieve Certificate From SMKI | — |
| 30 | 6.15.2 | Update Security Credential (Device) | Key Agreement Key - GPF |