ClearstreamXact: Corporate Action and Income ISO 15022/20022 client testing

Clearstream¹ informs clients that there will be an opportunity of message exchange between Clearstream and clients in ISO15022/20022 format for Corporate Action and Income events via Swift and Swift FIN+ channel.

To enable clients to test the flow with MT and MX messages and validate their setup and integration, Clearstream is offering the following testing window:

31 August – 11 September 2026

Registration for client testing

To register for client testing, clients need to complete the online Asset Services Testing Registration Form.

The registration form must be submitted by end of day 21 August 2026.

Registration forms received after this date will be processed on a best-effort basis only.

In this case, Clearstream cannot guarantee that all submitted data will be reflected in the test environment at the beginning of the testing period.

Please pay close attention to the details outlined in the form.

Clearstream encourages all impacted clients to participate in this testing period to ensure readiness and continuity of service.

Test ISIN codes, events and messages

Further information

For further information, clients may contact Clearstream Client Connectivity Services or their Relationship Manager.

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1. Clearstream refers collectively to Clearstream Banking S.A., registered office at 42, avenue John F. Kennedy, L-1855 Luxembourg, and registered with the Luxembourg Trade and Companies Register under number B-9248, and Clearstream Europe AG, registered office at Mergenthalerallee 61, 65760 Eschborn, Germany and registered in Register B of the Amtsgericht Frankfurt am Main, Germany under number HRB 7500. Clearstream Banking S.A. is registered as an Australian CS (Overseas) Facility, under subsection 824B(2) of the Corporations Act 2001, with registration number ARBN 675 244 783.