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Improving Intapp Billstream Speed
and Scalability for a Leading Global Law Firm
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Concurrent Billing Users Successfully Simulated
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Reduction in Latency for Key Billing Workflows
>0%
System Stability Achieved During Peak Load Testing
OVERVIEW
A global law firm was preparing to implement the Intapp Billstream platform, integrated with Thomson Reuters Elite 3E, to streamline billing operations across the firm. During the system integration testing phase, the platform exhibited critical performance issues—particularly within Proforma workflows—including slow load times, incomplete transactions, and inconsistent front-end feedback.
Without intervention, these issues risked user adoption, billing delays, and a failed go-live.
STS was engaged to assess and optimize system performance. Through a tailored combination of:
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End-to-end performance testing
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Real-world workflow simulation
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Infrastructure and API behavior analysis
STS helped the firm identify and resolve key bottlenecks.
The result: a scalable, stable, and high-performing billing system, ready to support enterprise-level demands.
CLIENT
Leading Global
Law Firm
IMPACT
Performance Testing for Intapp Billstream
INDUSTRY
Legal Services
SERVICES STS OFFERED
Performance Testing
CHALLENGE
Ensuring Billstream’s Usability, Scalability & Reliability Pre-Go-Live
A leading global law firm engaged STS to assess and validate the performance readiness of its enterprise billing platform, powered by Intapp Billstream integrated with Elite 3E. As the firm approached a critical deployment milestone, concerns arose around slow system responsiveness, workflow delays, and inconsistent user experiences—particularly during Proforma-related operations.
With heavy user activity expected during month-end billing cycles, the client needed a clear view of potential infrastructure limitations, performance risks, and workflow inefficiencies. STS was tasked with ensuring the platform could support enterprise-wide adoption without compromising stability or speed.
Untested Infrastructure Risks
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Unvalidated infrastructure configurations posed risks of instability, queuing, and downtime—especially during peak billing periods
Performance Bottlenecks
Testing revealed latency issues across core billing actions:
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Proforma Balance: 2.5–3 minutes per operation
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Proforma WriteDown: 15–20 seconds per action
These delays directly impacted user productivity and billing workflow completion.
Scalability Concerns
Initial simulated testing with 50+ concurrent users surfaced key challenges:
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Grid views took over 40 seconds to load
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Backend services became strained due to excessive API chaining, degrading responsiveness
Understanding that billing is essential, the firm collaborated with STS for organized performance testing and infrastructure validation. Our focused strategy identified the underlying causes of system slowdowns and confirmed the platform's readiness to handle high-concurrency usage effectively at scale.
SOLUTION
Performance Testing & Optimization for Billstream Workflows
STS delivered structured load and performance testing to evaluate the readiness of the client’s Billstream billing platform, integrated with Elite 3E, for enterprise-wide deployment. By simulating real-world workflows, measuring backend latency, and validating concurrency at scale, STS identified and resolved critical performance bottlenecks prior to go-live.
Our team executed a multi-phase strategy to deliver production-ready recommendations:
End-to-End Workflow Testing
STS used Playwright and JMeter to simulate up to 400+ concurrent users interacting with core Billstream workflows, including Proforma generation, WriteDown execution, and multi-page navigation.
This approach validated:
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System performance under realistic load\
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Backend behaviour during billing sequences
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Impact of user navigation timing on data stability
“STS’s rigorous performance testing allowed us to confidently move forward with our Elite 3E system, knowing it could handle peak business demands. Their insights into scalability and optimization were invaluable to ensuring long-term system reliability.”
Cross-Workflow Impact Analysis
Our findings revealed that performance issues affected multiple layers of the billing experience. By optimizing Proforma workflows, we were able to:
• Improve backend API consistency
• Stabilize user experience during high-frequency page switching
• Reduce data inconsistency issues across integrated tabs (Fees, Costs, Narrative)
Infrastructure Validation & Optimization
STS delivered targeted technical recommendations to improve overall system posture:
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Identified redundant service calls and advised on request consolidation
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Suggested adjustments to CPU and resource handling to mitigate load spikes
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Proposed asynchronous processing safeguards to reduce mid-operation failures during navigation
These combined efforts enabled the client to move forward with confidence—knowing their Billstream platform was tested, optimized, and scalable for enterprise-wide billing operations.
RESULTS
Scalable, Reliable Billing Platform Ready for
Enterprise Rollout
STS partnered with the client to ensure their billing platform—powered by Intapp Billstream and integrated with Elite 3E—could confidently support mission-critical operations at scale. Through targeted performance testing and smart workflow optimization, the firm achieved a stable, responsive, and scalable solution ahead of going live.
The engagement delivered measurable improvements in performance and user experience:
Confidence to Scale Billing Operations Firm-Wide
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Validated the system for 400+ concurrent users executing real billing scenarios.
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Delivered a stable foundation for firm-wide rollout, reducing the risk of billing disruption during peak usage.
Faster Billing Workflows, Better User Experience
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Resolved delays in core billing actions such as Proforma approvals and adjustments.
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Achieved up to 90% reductions in workflow latency, significantly improving turnaround time for billing teams.
“STS’s rigorous performance testing allowed us to confidently move forward with our Elite 3E system, knowing it could handle peak business demands. Their insights into scalability and optimization were invaluable to ensuring long-term system reliability.”
Figure 1. Latency Reductions Across Key Billing Workflows
(Lower values reflect faster task completion and improved productivity.)
Prepared for the Future, Not Just the Launch
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Identified and resolved bottlenecks that could have affected data accuracy and user confidence.
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Successfully supported the firm’s final integrated system test, confirming the platform’s ability to confidently handle enterprise-scale billing workflows.
By partnering with STS, the client transformed Billstream into a high-performing, business-ready billing solution—built not only for day-one success, but for long-term growth, user satisfaction, and operational resilience.
Optimize Your Billing Workflows—Partner with STS Today
Inspired by this success story and want to ensure your system’s performance, scalability, and reliability? Connect with the experts at STS to optimize your infrastructure, eliminate bottlenecks, and validate performance before your next big go-live.