This page is to provide a status update of on-going live changes where a service disruption is expected and has been communicated to clients. Please be advised the status of each maintenance window will be updated the next working day. Not ALL changes are listed.

Planned activities include infrastructure maintenance, software and hardware upgrades and application releases. Ordinarily these activities do not result in any non-availability of the Online Services to the Client, but this cannot be guaranteed. TransUnion contacts Clients by email with at least 7 calendar days notification prior to any work anticipated to affect service availability.

TransUnion also reserves the right to apply hotfixes without providing advance notice, however in this situation TransUnion provides retrospective notification.

Upcoming Maintenance Windows:

Date	Time (UK)	Impacted Services	Description	Overview	Status
Sunday 2nd August	04:00 - 07:00	All Online	Database Server Patching	There will be three 2-minute blips as databases are failed over impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Tuesday 4th August	04:00 - 07:00	All Online	Disaster Recovery Test	Outage to all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Postponed
Sunday 9^th August	04:00 - 07:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Sunday 16^th August	04:00 - 07:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 and one 10-minute period of impact between 06:30 - 07:00 to all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Sunday 16^th August	04:00 - 07:00	All Online	Azure Patching	No impact expected however there is a potential to experience slower response times across Credit Online Services, including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS.	Completed
Tuesday 18^th August	05:30 – 07:00	All Online	CallReport Release	During the window, a 5 minute period of degradation is expected impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS)	Completed
Sunday 23rd August	04:00 - 07:00	AQM	Disaster Recovery Test	Outage to AQM during the maintenance window	Completed
Tuesday 25th August	04:00 - 07:00	All Online	Disaster Recovery Test	Outage to all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Sunday 30^th August	04:00 - 07:00	All Online	Database Server Patching	There will be three 2-minute blips as databases are failed over impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Tuesday 1st September	04:00 - 05:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS).	Completed
Tuesday 1st September	05:00 - 07:00	All Online	Database Maintenance	There will be up to 5 mins of observed increased response times impacting Credit Online (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Completed
Sunday 6th September	04:00 - 06:00	All Online	Database Maintenance	There will be an outage to service for the duration of the window, impacting all Credit Online Services including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS and DecisionEdge AQM.	Completed
Sunday 6th September	06:00 - 07:00	Affordability	Database Maintenance	No impact expected, however there is a potential to experience slower response times during the window.	Postponed
Sunday 13th September	04:00 - 05:00	Credit Online Live (LV) Environment	SSL Certificate Renewal	Due to unknown bespoke client configurations, including any locally stored certificates for this service, Transunion advise clients to speak with their relevant technical teams to assess any impact to their Live Environment	Completed
Sunday 13th September	04:00 - 07:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS).	Completed
Sunday 20th September	04:00 - 07:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS).	Planned
Sunday 20th September	06:00 - 07:00	All Online	Azure Patching	No impact expected however there is a potential to experience slower response times across Credit Online Services, including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS.	Planned
Tuesday 22nd September	04:00 - 05:00	All Online	Database Maintenance	No impact expected however there is a potential to experience slower response times across Credit Online Services, including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS.	Postponed
Tuesday 22nd September	05:00 - 07:00	All Online	Network Maintenance	During the window, a 5 minute period of degradation is expected impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS)	Planned
Sunday 27th September	04:00 - 07:00	All Online	Database Server Patching	There will be three 2-minute blips as databases are failed over impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS) and DecisionEdge AQM.	Planned
Tuesday 29th September	04:00 - 07:00	AQM (Decision Edge)	Disaster Recovery Test	An outage to AQM (DecisionEdge) will be observed for the during of the maintenance window.	Planned
Sunday 4th October	04:00 - 05:00	All Online	Network Maintenance	There will be an outage observed for approx. 1 hour between 04:00 and 05:00 impacting all Credit Online Services (including CallReport, TruValidate, CallML, ThreeSixty, Affordability, TrueVision, Open Banking, and COSMOS).	Planned

As part of our ongoing commitment to managing information security we want to remind you that we may:

Disable user accounts that have been inactive for an extended period of time. To reactivate a disabled user account please email UKClientServiceDesk@transunion.com or call 0845 120 1222.

Remove disabled user accounts where users have not contacted us to request that their account be reactivated.

Continue to enhance our product password management requirements in line with good practice. Where we believe this will may impact you and your users or require you to take action beyond the usual updating of passwords as they expire, we will provide advanced notice of the proposed changes.

In order to minimise the risk of unauthorised use of user accounts, please continue to proactively make us aware of any user account which is no longer required (due to leavers, changes in role etc.) so that access can be removed in a timely manner.

We listen to all client comments and queries, so if you have questions about any of this work please let us know at UKClientServiceDesk@transunion.com on 0845 120 1222, or via your dedicated Client Manager.

If you’re a consumer with questions or issues related to your personal credit report, drivers history report, disputes, fraud, identity theft, credit report freeze or credit monitoring services, please visit our Customer Enquiries page for assistance.

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©2026 TransUnion Information Group Limited. All rights reserved. Registered in England and Wales with company number 04968328. Registered office: One Park Lane, Leeds, West Yorkshire, LS3 1EP. TransUnion International UK Limited, part of the TransUnion Information Group, is authorised and regulated by the Financial Conduct Authority under registration number 737740. Authorisation can be checked on the Financial Services Register at www.fca.org.uk. TransUnion International UK Limited is a credit broker and not a lender. TransUnion Information Group Limited and its subsidiaries utilise the TransUnion name under licence from TransUnion LLC.