Availability and schedules of the client simulation
The CBF client simulation environment (IMS23) is connected to the T2S Pre-Production environment (UTEST). The comprehensive processing of test cases demands the availability of both test environments. Additionally, the test schedule that is applicable for a desired test day (that is, either T2S Synchronised Standard Day, T2S Change Request Test Day or T2S Release Day) must be considered for a successful execution. CBF projects may offer simulations including the Xact client simulation environment OCCT (see graphic: testing periods in turquoise). These can even take place during a closure of the CBF client simulation environment IMS23.
The below graphic provides a forecast for the different customer simulation periods until June 2024.
To enlarge click on the image
In the CBF simulation environment IMS23, clients can process test cases as required between the downtimes and in parallel to project simulations. To do this, they must send an informal registration by email to email@example.com in order to receive the current test conditions. In the Xact client test environment OCCT, only project driven testing is possible.
CBF regularly offers Guided Client Simulations. This can be the case for T2S minor and major releases, if the introduction of a CBF project requires market readiness activities from market participants or if the scope of the new service necessitates dedicated test cases.
The following client simulation is currently planned:
- Cross-border Payments and Reporting (CBPR+) project
- 22 October 2023 to 17 November 2023.
The CBF client simulation environment (IMS23) and the T2S Pre-Production environment (UTEST) are regularly updated for deployment activities. Therefore, on the business day prior to the deployment activities, with the end of day procedures, CBF will close all connectivity channels towards IMS23 and UTEST.
Based on the CBF implementation schedule, IMS23 is planned to be closed from:
- 21 December 2023 to 3 January 2024; and
- 12 April to 10 May 2024.
In addition, maintenance activities are required. Therefore, on every Friday, after 14:00, testing will not be conducted as software updates will be installed. Additional downtimes might become necessary due to deployment activities by T2S and/or CBF.
Instructions can be entered or transmitted depending on the customer’s connectivity mode. Clients acting in ICP mode provide their instructions via CASCADE Online functionality (HOST/PC) or use an automated connectivity channel (Swift, MQ, File Transfer) to IMS23.
The current planning for the UTEST shows the following dedicated test cases that are executed under the control of T2S or ECB. The test execution impacts the processing of the "T2S Synchronised Standard Day". Test cases performed by CBF clients can therefore not be processed on UTEST as usual. As a result, the related settlement reporting cannot be transferred via T2S or CBF according to the regular test schedule:
- 6 December 2023: Insolvency of CSD/NCB participant testing; and
- 13 December 2023: RAD test.
After the implementation of the T2/T2S consolidation project in March 2023, the modified liquidity management procedures remain in UTEST. On the T2 platform, direct participants can use below the options to manage liquidity:
- Immediate Liquidity Transfer via T2 RTGS GUI
T2 RTGS GUI can be used to transfer funds from the RTGS DCA to the T2S DCA. For details on how to use this functionality please refer to section “Liquidity Transfer – New Screen” of the Real-Time Gross Settlement User Handbook.
- Immediate Liquidity Transfer via T2 CLM GUI
T2 CLM GUI can be used to transfer funds from the CLM MCA to the T2S DCA. For details on how to use this functionality please refer to section “Liquidity Transfer – New Screen” of the Central Liquidity Management User Handbook.
- Configure Standing Orders in CRDM
Standing order for liquidity transfers can be created via CRDM GUI (U2A). This functionality offers the possibility to create a daily liquidity transfer. Standing orders can be configured to execute at certain time or event. Please refer to Common Reference Data Management User Handbook regarding the set-up and the related fields descriptions.
- Liquidity Transfer via A2A camt.050 message
Participants can use the A2A channel for liquidity transfers from RTGS DCA or CLM MCA to T2S DCA. If so, the participant must provide in the creditor account of the T2S DCA to be funded. Please refer to the Real-Time Gross Settlement User Detailed Functional Specifications and Central Liquidity Management User Detailed Functional Specifications.
Before the deployment of any major and minor release, the T2S Test Service Desk will refresh the UTEST by changing the recycling period in the T2S UTEST environment for matched pending instructions and for unmatched pending instructions to one business day. With this option, the pending instructions with an intended settlement day far in the past are cancelled. The change to recycling parameter will be done in the same week when the deployment is executed. The T2S Test Service Desk will revert the parameters to their original values (60 business days for pending matched instructions and five business days for pending unmatched instructions) during the deployment weekend. The changes will be valid as of the next testing day. This process will also be applied on Friday four weeks after the implementation of a major and a minor release.
Based on the test or infrastructure requirements, T2S will run the processing day using the:
- T2S Synchronised Standard Day, that is, the general daily test schedule applies.
- T2S Change Request Test Day, which is required for T2S dedicated test cases.
- T2S Release Day, which is defined for installation procedures required by the T2S Actors.
- T2S Live Timing, which is announced for specific test procedures. In UTEST the operational schedule defined for the production environment will apply:
16 to 19 October 2023;
4 to 7 December 2023;
22 to 25 January 2024;
29 January to 1 February 2024; and
5 to 8 February 2024.
During these periods, the T2S test environment UTEST will be available for simulation until 18:00, whereas – as long as CBF does not participate in the T2S test activities – the CBF client simulation environment IMS23 will close as usual at 16:00. Only for the Live Timing in December 2023, CBF participation is planned.
T2S Settlement Procedure
T2S Synchronised Standard Day
|T2S Change Request Test|
T2S Release Day
Start of Testing
Partial Settlement 1
Partial Settlement 2
Partial Settlement 3
Partial Settlement 4
Partial Settlement 5
DvP / Cash SR Cut-off
BATM / CBO Cut-off
Inbound LTO Cut-off / Automated cash sweep
Securities SR / FoP Cut-off
End of Day / Start of Day
Change Business Day
Feeds from Collateral Management System
Start Night-Time / Cash Injection
End of Testing
a. Times that deviate from the T2S Synchronised Standard Day are shown in bold.