Leading Recordkeeper: The Migration That Set the Standard
The Challenge
A leading retirement recordkeeper needed to migrate its entire recordkeeping operation from FIS OmniPlus to SS&C DST TRAC. This was not a routine conversion. The engagement involved 700,000 participants, $20 billion in assets under administration, and more than 600 individual retirement plans, each with its own configurations, plan rules, and customizations built up over decades on the OmniPlus platform.
The absolute requirement: zero-day blackout. Participants could not lose access to their accounts for a single day. Trading could not stop. Compliance reporting could not lapse. Every single data point had to transfer with 100% accuracy.
Our Approach
Convergent deployed a team of senior practitioners who had personally operated both OmniPlus and TRAC platforms. Our approach included:
Custom ETL Applications. We built our own applications to extract, transform, and load data between the two platforms, engineered specifically for the data architectures of OmniPlus and TRAC rather than adapted from off-the-shelf tools.
OmniScript Analysis. Our team analyzed over 35,000 custom OmniScripts and TRAC programs to understand the full scope of business logic embedded in the source platform. We built custom applications to parse, categorize, and map these scripts to equivalent TRAC functionality.
Dry-Run Methodology. We executed three progressively rigorous dry runs before go-live. Each dry run validated data accuracy, identified edge cases, and refined our conversion scripts. By the time we reached production cutover, we had already proven the process end-to-end.
We also developed custom data standardization tools that normalized data formats between the two platforms, keeping all 600+ plans consistent, and wrote automated validation scripts that checked every participant record, plan configuration, and financial balance after the migration.
The Results
The migration was completed on schedule with 100% data accuracy and zero participant impact: no blackout period, no data loss, and no compliance gaps.
This engagement established Convergent's Migration Playbook, a methodology of 1,200+ tasks that has become the standard for every migration engagement we undertake.
It remains the largest single-platform retirement migration completed without a blackout period in recent industry history.
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