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SEI Trust 3000 Reconciliation

For a number of years CSSI Solutions had provided reconciliation services to a SEI Trust 3000 customer who...

January 21, 2026James KippBy James Kipp
Insight

For a number of years CSSI Solutions had provided reconciliation services to a SEI Trust 3000 customer who used Advents ACD and Axys to gather, translate, and reconcile the Trust 3000 system to the Axys on a monthly basis.  At one point the customer brought it inhouse.  Recently they decided to move this process to CSSI's CyGem Platform that utilizes CSSI data feeds, CyGem's reconciliation capabilities, and Portal's custom reporting features.  This has allowed them to cut the overall cost and allow the team to concentrate on other work as my Team has taken over the process.

Background

What is SEI Trust 3000, and why reconcile it?

SEI Trust 3000 is SEI's trust accounting and processing system. Bank trust departments and trust companies use it to keep the books of record for the accounts they administer.

When a firm also runs a portfolio accounting system such as Advent Axys or APX for performance and client reporting, the two records need to agree. A Trust 3000 reconciliation compares positions, cash, and transactions between the systems and researches each break before reports go out.

In the engagement above, the customer used Advent ACD and Axys to gather, translate, and reconcile Trust 3000 data to Axys each month. CSSI now runs that process on its CyGem platform, using CSSI data feeds, CyGem reconciliation, and Portal+ custom reporting.

Investment reconciliation services

Where CSSI can help

Related service paths

If this insight points to a bigger project

When the issue becomes a real delivery, reporting, or infrastructure decision, the back-office services page is the best next stop.

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