In this case study, I share my experience leading product design and user research for a Power Platform “case-exclusion” application and dashboards for a leading German truck manufacturer (name withheld under NDA). My remit covered the end-to-end UX for the Power App — from persona workshops and flow mapping to building an accessible Figma component library — while supporting a second designer on the Power BI dashboards. The objective was to replace a sluggish, accessibility-flawed legacy tool with a faster, role-aware solution that could scale across 30+ markets and automate complex approval logic.
Replaced a slow legacy tool with a Power Platform app that automates approvals and scales to 30+ markets.
The in-house “case-exclusion” tool was infamous for 40-second loads, manual email chains and a UI that breached accessibility rules.
Complicating matters:
▫️Holiday crunch — delivery was first pegged for 31 Dec 2024, right through the winter break.
▫️Shifting scope — deliverables grew as stakeholders realised the legacy dashboard logic.
▫️Data access pain — Databricks permissions failed several times, blocking QA.
▫️Fragmented management — because multiple Reply subsidiaries were tapped, 5 different PMs cycled in to “help coordinate.” Ownership blurred, decisions slowed, and responsibility gaps emerged.
Two remote workshops surfaced three clear personas:
Pain-point mapping showed that status opacity and manual limit checks cost ~15 min per request. We framed the product principle:
“Make limits & status self-evident.”
Design system
I built a Figma component library in one week, then paired with engineers to port tokens to Power Apps. We adjusted brand colours to hit 4.5:1 contrast while keeping the corporate palette.
Role-driven UI
The canvas renders columns and actions based on the Rights & Roles matrix.
Automation layer
▫️Power Automate flows trigger all eight email templates and a three-step reminder ladder.
▫️Auto-approval logic consults the Databricks limit table nightly; overrides if case was previously excluded.
Dashboards
Secondary designer led Power BI; I reviewed layouts and injected the exclusion status filter and colour tokens.
Despite the holiday-season crunch and a staggered rollout, the first production release delivered clear, measurable wins that validated the redesign and set the stage for future feature work:
Shipping a 5× faster, WCAG-compliant platform to 34 markets — despite holiday absences, shifting scope, and a five-PM shuffle — proved that tight deadlines don’t have to force shallow results. The project’s success hinged on front-loading design systems, automating repetitive checks, and staying ruthless about visible performance wins.
Key takeaways:
✔️ Design tokens pay compounding dividends in multi-role apps.
✔️ Clear SLA nudges (Teams or email) are as valuable as UI polish.
✔️ Performance metrics tell the story better than feature lists when executive attention is scarce.