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Operational Bulletin Table

Some bulletins will contain an attachment, this will be indicated. The bulletins issued up to 21/09/21 are shown in the table below.

BU165(154KB pdf)

Software Release v7.5

Attachment 1(154KB pdf)

12 Sep 2024

BU164(116KB pdf)

Central System Availability

04 Apr 2024

07 Apr 2024

BU163(154KB pdf)

Software Release v7.4

Attachment 1(154KB pdf)

15 Mar 2024

BU162(126KB pdf)

RF FY 2022/23

18 Jan 2024

05 Feb 2024

BU161(124KB pdf)

CMA Office & Central System Availability: December 2023/January 2024

06 Dec 2023

03 Jan 2024

BU160(140KB pdf)

Software Release v7.3

Attachment 1(140KB pdf)

19 Sep 2023

BU159(178KB pdf)

E3019: Tariff Data FY 2023-24

27 Apr 2023

BU158(138KB pdf)

Software Release v7.2

Attachment 1(138KB pdf)

21 Mar 2023

BU157(123KB pdf)

RF FY 2021/22

13 Jan 2023

08 Feb 2023

BU156(125KB pdf)

CMA Office & Central System Availability: December 2022/January 2023

20 Dec 2022

04 Jan 2023

BU155(137KB pdf)

Software Release v7.1

Attachment 1(137KB pdf)

21 Sep 2022

BU154(144KB pdf)

Declaration of a Bank Holiday on Monday 19th of September 2022 - CMA Office & Central System Availability

14 Sep 2022

BU153(160KB pdf)

Software Release v7.0-Tech Refresh

27 Jun 2022

BU152(136KB pdf)

Software Release v6.4

Attachment 1(136KB pdf)

22 Mar 2022

BU151(131KB pdf)

Performance Standards Charges Q3 and Q4 2021_22

21 Jan 2022

BU150(120KB pdf)

RF FY 2020/21

17 Jan 2022

08 Feb 2022

BU149(134KB pdf)

CMA Office & Central System Availability: December 2021/January 2022

13 Dec 2021

05 Jan 2022

BU148(138KB pdf)

Software Release v6.3

Attachment 1(138KB pdf)

21 Sep 2021

BU147(134KB pdf)

WCDS Unwinding and WCDS II

Attachment 1(134KB pdf)

Attachment 2(134KB pdf)

Attachment 3(134KB pdf)

18 Jun 2021

BU146(134KB pdf)

Replacement of Nottingham disaster recovery site with Microsoft Azure cloud-based solution

09 Jun 2021

BU145(189KB pdf)

Performance Standards Charges Q4 2020_21

14 Apr 2021

BU144(137KB pdf)

Software Release v6.2

Attachment 1(137KB pdf)

23 Mar 2021

BU143(123KB pdf)

Cyber Security

09 Mar 2021

BU142(124KB pdf)

RF FY 2019/20

03 Feb 2021

10 Feb 2021

BU141(128KB pdf)

CMA Office & Central System Availability: December 2020/January 2021

16 Dec 2020

04 Jan 2021

BU140(126KB pdf)

Unwinding Covid 19 Derogations

Attachment 1(126KB pdf)

18 Nov 2020

BU139(133KB pdf)

Software Release v6.1

Attachment 1(133KB pdf)

22 Sep 2020

BU138(120KB pdf)

P1 Settlement Runs

10 Jun 2020

BU137(144KB pdf)

Wholesale Charge Deferral Scheme

14 May 2020

BU136(134KB pdf)

Technical Responsibilities within the CMA

04 May 2020

BU135(120KB pdf)

Market Code / CSD Derogations

Attachment 1(120KB pdf)

27 Mar 2020

BU134(142KB pdf)

Software Release 5.5

Attachment 1(142KB pdf)

24 Mar 2020

27 Mar 2020

BU133(127KB pdf)

FTP Password Procedure

14 Feb 2020

BU132(125KB pdf)

RF FY 2018/19

23 Jan 2020

07 Feb 2020

BU131(134KB pdf)

CMA Office & Central System Availability: December 2019/January 2020

16 Dec 2019

03 Jan 2020

BU130(146KB pdf)

Software Release 5.4

Attachment 1(146KB pdf)

17 Oct 2019

25 Oct 2019

BU129(144KB pdf)

WICS Performance Reports – CMACP281

23 May 2019

BU128(120KB pdf)

Extended opening times to the availability of the Central System

28 Mar 2019

BU127(145KB pdf)

Software Release v5.3

Attachment 1(145KB pdf)

21 Mar 2019

29 Mar 2019

BU126(126KB pdf)

RF FY 2017/18

30 Jan 2019

10 Feb 2019

BU125(440KB pdf)

CMA Office & Central System Availability: December 2018/January 2019

07 Dec 2018

03 Jan 2019

BU124(468KB pdf)

Software Release v5.2

Attachment 1(468KB pdf)

24 Sep 2018

28 Sep 2018

BU123(215KB pdf)

RF FY 2016/17

19 Jan 2018

03 Feb 2018

BU122(235KB pdf)

Software Release v5.1

19 Jan 2018

02 Feb 2018

BU0121(219KB pdf)

CMA Office & Central System Availability: December 2017/January 2018

06 Dec 2017

03 Jan 2018

BU120(234KB pdf)

Attachment 1(234KB pdf)

18 Sep 2017

29 Sep 2017

BU119(235KB pdf)

Software Release v4.6

Attachment 1(235KB pdf)

09 Mar 2017

17 Apr 2017

BU118(212KB pdf)

RF FY 2015/16

20 Dec 2016

24 Feb 2017

BU117(216KB pdf)

CMA Office & Central System Availability: December 2016/January 2017

16 Dec 2016

04 Jan 2017

BU116(229KB pdf)

Scottish Landlord Portal Deployment

28 Oct 2016

31 Oct 2016

BU115(232KB pdf)

Software Release 4.5

Attachment 1(232KB pdf)

22 Sep 2016

30 Sep 2016

BU114(233KB pdf)

Software Release 4.4.1

Attachment 1(233KB pdf)

28 Apr 2016

06 May 2016

BU113(233KB pdf)

Software Release 4.4

Attachment 1(233KB pdf)

09 Mar 2016

18 Mar 2016

BU112(254KB pdf)

T012.1 ‘Update Chargeable SPID Data’

13 Jan 2016

23 Sep 2016

BU111(214KB pdf)

CMA Office & Central System Availability: Dec 2014/Jan 2015

15 Dec 2015

05 Jan 2016

BU110(210KB pdf)

RF 2014/15

11 Dec 2015

26 Feb 2016

BU109(232KB pdf)

Software Release 4.3

Attachment 1(232KB pdf)

16 Sep 2015

25 Sep 2015

BU108(232KB pdf)

Software Release Note 4.2.1

Attachment 1(232KB pdf)

16 Jun 2015

24 Jun 2015

BU107(230KB pdf)

Delay of Software Release 4.2

24 Mar 2015

24 Mar 2015

BU106(265KB pdf)

Software Release 4.2

Attachment 1(265KB pdf)

10 Mar 2015

27 Mar 2015

BU105(210KB pdf)

RF FY 2013/14

19 Dec 2014

08 Feb 2015

BU104(214KB pdf)

CMA Office & Central System Availability: Dec 2014/Jan 2015

10 Dec 2014

05 Jan 2015

BU103(268KB pdf)

Software Release 4.1

Attachment 1(268KB pdf)

11 Sep 2014

19 Sep 2014

BU102(292KB pdf)

Central Systems Rebuild

27 Jun 2014

04 Jul 2014

BU101(296KB pdf)

Termination of SWW Vacant Incentive Scheme Workaround

25 Mar 2014

31 Mar 2014

BU100(236KB pdf)

Software Release v3.67

Attachment 1(236KB pdf)

13 Mar 2014

25 Mar 2014

BU099(247KB pdf)

User Access Form

28 Feb 2014

BU098(195KB pdf)

Notification of submission of ERRA data before RF is run for FY12_13

09 Jan 2014

08 Feb 2014

BU097(200KB pdf)

CMA Office & Central Systems Availability Dec 2013-Jan 2014

20 Dec 2013

06 Jan 2014

BU096(240KB pdf)

Software Release v3.6

Attachment 1(240KB pdf)

23 Sep 2013

27 Sep 2013

BU095(270KB pdf)

Not Used

BU094(216KB pdf)

Market Continuity Excersise

14 Jun 2013

24 Jun 2013

BU093(219KB pdf)

Software Release v3.5

05 Apr 2013

12 Apr 2013

BU092(215KB pdf)

Central Systems  Availability

07 Jan 2013

14 Jan 2013

BU091(200KB pdf)

CMA Office & Central Systems Availability Dec 12-Jan 13

17 Dec 2012

03 Jan 2013

BU090(285KB pdf)

Software Release v3.4

21 Sep 2012

28 Sep 2012

BU089(301KB pdf)

Market Continuity Exercise

28 Aug 2012

03 Sep 2012

BU088(218KB pdf)

Software Release v3.3

Attachment 1(218KB pdf)

14 Jun 2012

22 Jun 2012

BU087(90KB doc)

CMA Office Availability

05 Apr 2012

06 Apr 2012

BU086(107KB doc)

March 2012 Release v3.2

22 Mar 2012

30 Mar 2012

BU085(89KB doc)

Opt out of POLR

01 Mar 2012

10 Mar 2012

BU084(281KB pdf)

CMA Office & Central Systems Availability Dec 11-Jan 12

22 Dec 2011

03 Jan 2012

BU083(212KB pdf)

Software Release v3.1

01 Nov 2011

11 Nov 2011

BU082(90KB doc)

Central Systems Cutover

25 Oct 2011

31 Oct 2011

BU081(59KB pdf)

Central Systems Cutover-Rollback

03 Oct 2011

04 Oct 2011

BU080(90KB doc)

Central Systems Cutover

29 Sep 2011

01 Oct 2011

BU079(90KB doc)

Central Systems Availability 30/09/11

23 Sep 2011

30 Sep 2011

BU078(90KB doc)

Central Systems Availability 23/09/11

22 Sep 2011

23 Sep 2011

BU077(90KB doc)

Central Systems Availability 23/09/11

15 Sep 2011

23 Sep 2011

BU076(90KB doc)

Central Systems Availability 16/09/11

08 Sep 2011

16 Sep 2011

BU075(90KB doc)

Central Systems Availability 09/09/11

12 Aug 2011

12 Sep 2011

BU074(90KB doc)

Central Systems Availability 19/08/11

05 Aug 2011

21 Aug 2011

BU073(89KB doc)

Central Systems Availability 24/03/11

22 Mar 2011

25 Mar 2011

BU072(94KB doc)

Software Release March 2011

Attachment 1(94KB doc)

10 Mar 2011

BU071(93KB doc)

Change to CMA CS Website Homepage

24 Feb 2011

BU070(93KB doc)

Software Release September 2010

Attachment 1(93KB doc)

17 Sep 2010

BU069(93KB doc)

Software Release: Customer Names

Attachment 1(93KB doc)

24 Jun 2010

BU068(94KB doc)

Software Release: RF Settlement and IP Settlement.

Attachment 1(94KB doc)

11 Jun 2010

BU067(90KB doc)

Software Release Security

Attachment 1(90KB doc)

30 Apr 2010

BU066(90KB doc)

CMA Office & Central Systems Availability 2/04/10

23 Mar 2010

03 Apr 2010

BU065(35KB doc)

Central Systems Availability 24/03/10

23 Mar 2010

24 Mar 2010

BU064(95KB doc)

Central Systems Availability 19/3/10

18 Mar 2010

22 Mar 2010

BU063(101KB doc)

Tradeable Status and Charging

24 Mar 2010

BU062(85KB doc)

Settlement Calendar for 2010/11

26 Jan 2010

BU061(88KB doc)

Market Document Update December 2009

Attachment 1(88KB doc)

16 Dec 2009

BU060(94KB doc)

CMA Office & Central Systems Availability Dec 09-Jan 10

03 Dec 2009

05 Jan 2010

BU059(96KB doc)

Software Release 1.4.4-Application of Charges During Temporary Disconnection

26 Nov 2009

BU058(90KB doc)

Software Release 1.4.4-Update

26 Nov 2009

BU051(31KB doc)

System upgrade and Software Release Notes 1.4.3

Attachment 1(31KB doc)

27 Jul 2009

BU049(30KB doc)

Setting Permanent Disconnection Dates

16 Jul 2009

BU045(23KB doc)

Guidance Note GN007 - Crystalisation

Attachment 1(23KB doc)

21 Apr 2009

BU039B(24KB doc)

System Upgrade and Software Release Notes 1.4.2

Attachment 1(24KB doc)

06 Mar 2009

BU039A(24KB doc)

System Upgrade to release 1.4.2 and associated CSD update

06 Mar 2009

BU029(26KB doc)

Issue of Guidance Note 006 Concerning Performance Measures Calculation

Attachment 1(26KB doc)

09 Dec 2008

BU028(26KB doc)

Software Release 1.4.1 Effective from 01 December 2008

Attachment 1(26KB doc)

26 Nov 2008

BU027(24KB doc)

Issue of Guidance Note 005 Concerning the R3 and RF Reconciliations

Attachment 1(24KB doc)

26 Nov 2008

BU026(24KB doc)

Issue of Guidance Note 004 Concerning the Use of the Meter ID

Attachment 1(24KB doc)

26 Nov 2008

BU024(29KB doc)

Example of the Disaggregated Settlement Report

Attachment 1(29KB doc)

29 Sep 2008

BU021(28KB doc)

Advance notice of a new D4001 Organisation ID:ONDEO

21 Aug 2008

BU020(29KB doc)

A new Licensed Provider is now active from 22/08/2008: Osprey Limited

21 Aug 2008

BU014(66KB msg)

E0151 Settlement Run Timetable shows the Issue Date

29 Apr 2008

BU012(155KB doc)

System Default values for Estimated Yearly Volume and the Maximum Volume for water meters

14 Apr 2008

BU011(30KB doc)

E0026-G0022 Appearance of Chargeable meter Sizes on the settlement report

10 Apr 2008

BU010(29KB doc)

Enquiry E0112: R1, R2, R3 and RF reconciliations will show the revised total charges for the invoice period

10 Apr 2008

BU007(29KB doc)

Guidance Note GN001 EWA changes and the T031

Attachment 1(29KB doc)

01 Apr 2008

BU005(30KB doc)

Meter Networks and Wholesale Charges

Attachment 1(30KB doc)

01 Apr 2008

BU004(25KB docx)

SPIDs with DPIDs that have LINKED SPIDs which must also be transferred

08 Apr 2008

BU002(34KB doc)

Three Technical matters that affect Switching and Wholesale Charging

01 Apr 2008

Archived Bulletins