How Sprinterra Estimates the Complexity of Modern UI Migration

Continuing our guide to supporting partners and customers through Acumatica’s Modern UI transition

As Acumatica accelerates its shift toward the Modern UI introduced in 25R2, partners and customers are recognizing a new reality: migrating customizations is not simply a visual redesign – it is a technical transformation that varies significantly from screen to screen.

At Sprinterra, we have already migrated hundreds of modified and fully custom Acumatica screens across our ISV solutions and customer projects. Through this experience, we developed an objective, repeatable method to estimate the true complexity and effort required for each migration. This process forms the foundation of our Modern UI Migration Assessment, delivered through our automated tools.

Below is an overview of the methodology behind our estimation model.

Why Complexity Analysis Matters

Every Acumatica customization is unique. Some extend existing screens with minor UI tweaks. Others introduce fully custom functionality built years ago using Classic UI components.

Because Acumatica plans to fully retire the Classic UI, customers need a reliable way to estimate:

  • How many screens they have

  • Which screens require modification

  • How complex each migration will be

  • How much effort and time will be required

Sprinterra’s approach delivers clarity and predictability long before migration work begins.

Sprinterra’s Algorithm for Analyzing Migration Complexity

Our estimation model is based on quantitative analysis of the underlying XML and ASPX files that define Acumatica screens. The methodology is fully documented in our technical guide  .

1. Categorizing Screen Types

Every screen falls into one of two categories:

  1. Modified Screens (60% weight)

    These are Acumatica standard screens modified by developers.

     

  2. Custom Screens (40% weight)

    Fully custom-built screens created by developers.

These categories behave differently during migration, so each receives a weighted effort factor. 

2. Counting UI Elements (Tags)

Each XML/ASPX file contains a structure made of tags – fields, containers, grids, buttons, actions, and layout elements.

Sprinterra’s assessment tool automatically scans each screen and:

  • Counts every tag
  • Maps each tag to its screen ID
  • Produces a per-screen complexity score

Today, each tag = 1 complexity point, though a more granular weighted model is planned. 

This allows us to objectively measure structural complexity rather than relying on subjective estimates.

A planned enhancement for future versions of the utility is the implementation of granular complexity weighting. This involves assigning a distinct point value to each tag type, reflecting its relative complexity of implementation.

Example:

3. Converting Points Into Effort

Using real-world migration data, we established Average Productivity Rates (APR):

  • Overall APR: 20 points/hour

  • Modified screens: 16 points/hour

  • Custom screens: 24 points/hour

This means customized screens require more effort per tag, while fully custom screens are generally more straightforward.

The formula is:

Total Hours = (Customized Points / 16) + (Custom Points / 24)

(Regression testing added separately.)

4. Automated Reports and Outputs

Our Customization Assessment Tool produces structured outputs, including:

  • List of analyzed screens (IDs, categories)

  • Tag counts and complexity score per screen

  • Total effort points

  • Summary report for management tracking

These reports give partners and customers a transparent view of the effort required – before investing in migration. 

5. Real-World Example

The following example is based on the analysis of a completed migration project covering four packages, which together included:

  • 20 modified screens

  • 24 custom screens

Total tag count: 2,755

  • 853 tags in customized screens

  • 1,902 tags in custom screens

Based on this real-world case, the average migration rate was approximately 20 tags (points) per hour.

When analyzed by screen category:

  • Modified screens: ~16 tags (points) per hour

  • Custom screens: ~24 tags (points) per hour

Total migration time:

853 / 16 + 1,902 / 24 = 133 hours (plus QA time for regression testing).

During this project, various screen types were involved, including Setup, Maintenance, Data Entry, Inquiry, and Processing screens.

Why Partners and Customers Benefit From This Approach

✔ Predictable timelines

No more guessing how long a migration will take.

✔ Accurate budgeting

Effort hours are tied directly to measurable complexity.

✔ Scalable assessments

Whether analyzing 5 screens or 5,000, automation ensures consistency.

✔ Transparency

Customers receive detailed reports showing exactly what drives complexity.

✔ Faster delivery

Our algorithms power Sprinterra’s automated tools, reducing manual effort and shortening migration timelines.

Preparing for Acumatica’s UI Transition

With Acumatica’s Modern UI becoming the standard – and the Classic UI being phased out – customizations will require timely updates to stay compatible.

Sprinterra’s assessment methodology ensures:

  • Accurate estimation

     

  • Efficient planning

     

  • Faster migration

     

  • Reduced risk

     

  • Better upgrade readiness

     

If you missed the first article in this series, you can read it here:

https://www.sprinterra.com/moving-to-acumaticas-modern-ui-a-simple-guide-for-partners-and-customers/

Need a Modern UI Migration Assessment?

Sprinterra provides:

  • Automated migration complexity reports

  • Free assessments for qualified partners

  • End-to-end migration services

  • Tools to accelerate upgrades and reduce QA effort

If you’d like us to assess your customizations or run a pilot migration, we’re ready to help.



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Frequently Asked Questions

Why is complexity analysis important for Acumatica Modern UI migration?

Because every customization is different, partners need a reliable way to understand how many screens require updates, how complex each migration will be, and how much effort is involved. Complexity analysis ensures predictable timelines, accurate budgeting, and reduced migration risks.

What types of screens does Sprinterra evaluate?

Sprinterra categorizes every screen into two groups:

  • Modified screens (standard Acumatica screens with developer changes)

  • Custom screens (fully custom-built screens)
    Each category behaves differently during migration and receives a weighted effort factor.

How does Sprinterra calculate complexity for each screen?

Their assessment tool scans the XML/ASPX files and counts UI elements (“tags”) such as fields, grids, buttons, and layout components. Each tag represents one complexity point, forming the screen’s total score. A more granular weighted model is planned for future versions.

How are complexity points converted into effort hours?

Sprinterra applies real-world productivity benchmarks:

  • Overall APR: 20 points/hour

  • Modified screens: 16 points/hour

  • Custom screens: 24 points/hour
    The formula used is:
    Total Hours = (Customized Points ÷ 16) + (Custom Points ÷ 24)
    Regression testing is calculated separately.

     

What kind of output does the Modern UI Migration Assessment provide?

The tool generates detailed reports including:

  • Full list of screens analyzed

  • Tag counts and complexity scores

  • Total effort estimation

  • Management-ready summary reports
    These give customers complete transparency into migration requirements.

     

What are the benefits of Sprinterra’s migration assessment approach?

Key advantages include predictable migration timelines, accurate budgeting, scalable analysis for any number of screens, transparent reporting, and faster delivery through automation.

Why is now the time to prepare for Acumatica’s Modern UI transition?

Acumatica is phasing out the Classic UI, meaning all customizations must be updated to the Modern UI to remain compatible with future releases. Early assessment ensures smooth transitions, reduced risk, and readiness for upcoming upgrades.

Does Sprinterra offer help with migration planning and execution?

Yes. Sprinterra provides automated assessment tools, free evaluations for qualified partners, complete migration services, and optimization solutions to reduce QA effort.