Subject Migration of Trading

$Hi,$

We're looking into migrating the client trading platform from our current web$-$based interface $($System A$)$ to a messaging platform instead $($System B$),$ over a three month period. This will involve setting clients up on the new system and undertaking testing to ensure that every client can use it effectively before we decommission the webbased platform.

Our Operations team have already collected some initial information that might prove useful when it comes to managing the migration of platforms and I've attact information to this email.

Can l ask for your support by reviewing this attached information and providing your insights into how we can manage the migration process?

Specifically, please can you spend $30$ minutes reviewing this information and consider the following:

How will you inform clients of the migration$/$change in system?

How will you organise setting up clients to complete testing?

How will you manage the migration, and monitor and report on progress? colleagues may have.

Thank you,

Johanna

Johanna Adiq

Chief Operations Director

London Stock Exchange Group