They Used Axys for 25 Years. They Did Not Want to Leave It. They Just Wanted It to Work Better.
How one equity manager went from spending days on quarterly reporting to finishing in minutes, without moving off Axys or disrupting the team.
- Industry
- Asset Management, Long-Only Equity
- Platform
- Advent Axys + CSSI Portal+
- Timeline
- 30 Days to Go-Live
Twenty-five years is a long time to trust a system. This firm built its operation around Advent Axys: portfolio accounting, billing, and client reporting. All of it worked until it did not work well enough.
The problem was not Axys itself. Axys did what it was designed to do. The problem was everything that happened after the data came out of it.
Quarterly reporting had become a grind. The team was spending hours, sometimes days, pulling data, building reports, formatting packages, and getting everything out the door. Every reporting cycle felt harder than the last.
Something had to change. But changing everything was not an option.
The Real Problem: Migration Felt Like the Only Path Forward
The firm had looked at other platforms. Every investment firm running Axys has had that conversation. Maybe we should migrate to APX. Maybe Tamarac is the answer. Maybe we just need to start over.
But every option came with the same baggage: cost, disruption, retraining, and the risk of breaking workflows that had been running for over two decades. New report formats would confuse clients who were already comfortable with what they had. New systems would mean months of transition and uncertainty.
The firm did not need a new system. It needed a better way to use the one it already trusted.
The Solution: CSSI Portal+ on Top of Axys
That is where CSSI came in. Instead of ripping out Axys and replacing it, CSSI connected Portal+ directly to the firm's existing Axys environment. The firm kept the same data and the same portfolio accounting system, but changed how reports were packaged and delivered.
Portal+ sat on top of Axys and gave the firm a cleaner way to package, present, and deliver quarterly reporting. No migration. No system conversion. No retraining the team on a platform they had never seen before.
What the Firm Gained with CSSI Portal+
- Automated quarterly client reporting and report packaging, replacing hours of manual work
- 50 standard Portal+ reports with flexible data presentation options
- Modern, branded client reporting built on existing Axys data
- Secure workflows for data pulls, reconciliation, billing, and delivery
- A professional client portal experience their clients actually wanted to use
- All of this without the cost or risk of a full Axys migration
Before and After: See the Difference
Sometimes the story is in the visual. Slide left to reveal the Portal+ report, or slide right to see the original Axys output the team had to package manually.
Original diversification report
Portal+ branded report package


Before: the same diversification data in a plain tabular report that still needed packaging and presentation work.
After: branded portfolio summaries, charts, totals, and package presentation that feel built for client review.
From Kickoff to Go-Live in 30 Days
One of the biggest concerns firms have when they consider any kind of change is time. How long will this take? How much of my team's bandwidth will it consume? Will my clients notice the disruption?
CSSI completed the entire implementation in about 30 days. Here's how it happened.
- 1
Discovery and Planning
CSSI met with the client team to review requirements, document the existing quarterly reporting and billing workflow, and map it into a new reporting package within Portal+. CSSI also configured the Portal+ site with the firm's branding and cleaned up Axys groupings and household structures.
- 2
Report Package Buildout
CSSI built and staged the new client reporting package for review. The Axys data pull process, automation, connectivity, and scripts were deployed, and the team reviewed branding, disclaimers, report presentation, and the overall Portal+ client experience.
- 3
Testing and Validation
CSSI validated the data flows, checked report accuracy, and tested the full quarterly reporting workflow end to end. Sample client invitations, cover letters, and billing outputs were reviewed and approved.
- 4
Go-Live
Portal+ went live with a subset of clients and then rolled out more broadly. Clients began receiving quarterly reporting packages through secure email invitations, including personalized letters, summaries, appraisals, billing information, and performance reports.
The Results
The reporting cycle changed as soon as the new workflow went live.
Within 30 days, the firm was fully live on CSSI Portal+ with a reporting workflow that was faster, cleaner, and easier to run every quarter.
Key Outcomes for the Firm
- Dramatically less manual work during quarterly reporting cycles
- Faster production and delivery of client reporting packages
- Professional, branded reports without changing trusted Axys-based structures
- A lower-cost, lower-risk path than a full Axys migration or system replacement
- A cleaner starting point for future client portal, dashboard, and workflow improvements
The firm kept the portfolio accounting system it knew while significantly improving how reporting and billing were handled. It improved the work around Axys instead of starting with a migration.
What This Means for Your Firm
If your firm still runs on Axys, you already know the conversation. Should we migrate? Should we stay? Is there a middle ground?
This case study is that middle ground.
You do not have to abandon a system that works to get reporting that looks current. You do not have to retrain your team or explain new report formats to clients who are comfortable with what they know.
You may just need a better layer on top of what you already have.
Better Axys reporting does not have to start with migration.
Still Using Axys?
CSSI can help improve reporting, billing, and client delivery without forcing a full platform conversion.
