CMOS

The Central Market Operating System (CMOS) is the core IT system for the non-household market. CMOS manages all the electronic transactions involved in switching customers and provides water usage and settlement data. MOSL, in partnership with CGI, are continually working to improve CMOS operations. Here you’ll find MOSL’s release plans, outlining future functionality.

CMOS – Next Release

CMOS 16.0 Release Note

07/10/2024

Error Codes - 16.0.1.1

11/09/2024

XSDs for CMOS Release 16.0

09/09/2024

CMOS – Current Release

CMOS Maintenance Schedule 2024-2025

04/10/2024

CMOS 15 Release Notes

13/05/2024

Error Codes - 15.0.1.1

01/05/2024

CMOS Release Schedule 2024-2025

13/03/2024

CMOS – Previous Release

Tariff Data Upload Guidance 2024 - 2025

31/01/2024

CMOS 14.5 Release Notes

14/11/2023

Error Codes - 14(5).0.1.0

02/08/2023

Data Management

CMOS Data Retention / Deletion

19/07/2024

Maximum number of transactions to be submitted into CMOS

24/06/2024

Staff Data Protection Training Policy

14/04/2021

Security Incidents and Breaches Policy

14/04/2021

Defect Management

ALM Observations (Defect Log)

14/04/2021

CMOS Administration

 /  View all

Raising tickets with CGI – ServiceNow instructions

Trading Party System Proforma

System Connection Guidance

USR SPID/SC template

MVI Batch Template

Guidance for Final meter read following Change of Use

SPID Flows Tradability

Recreating Supply Points Following Erroneous Deregistration

Non-Code Change (NCC) Request Guidance

NCC Change Request Template

FTP Reporting Login Instructions

Agreement Management (Wholesale) Guidance Note

MO Portal User Guide

CMOS Training Videos

 /  View all

CMOS General Training

Reporting Overview

CMOS Training Documents

 /  View all

CMOS 15.0 Retailer User Manual

CMOS 15.0 Wholesaler User Manual

Viewing and Creating Agreements in CMOS

Reporting Training Student Workbook

Reporting Training Presentation slides

Reporting Training Course Schedule

Remedy Service Management Interface

CMOS 3.0 Reporting User Manual

MOSL Guidance

 /  View all

My MOSL Late Payment Guidance

My MOSL User Admin guidance

My MOSL - Gap Site Guidance

QMS Generic Queries User Guide

Submitting an General Query Request

MOSL Partner Account Guide

Submitting an Unplanned Settlement Run Request

Related pages

Non-code change requests

View CMOS-impacting change requests here.

View page

Operations and Release Working Group (ORWG)

The latest outputs from the ORWG.

View page

CMOS – Release archive

CMOS 12.0 Release Note Final

12/10/2023

CMOS 14 Release Note

02/06/2023

Error Codes - 14.0.2.1

19/05/2023

XSDs for CMOS Release 14.0

25/01/2023

Receive the most relevant and up-to-date communications from MOSL by signing up to our mailing list.