Yixuan LiuProduct DesignerLet’s talk

SGB Partner PortalUI Refresh & Navigation Redesign

Overview
A UI refresh and navigation redesign for SGB Energiehandel’s sales partner portal. I updated the visual language, clarified information hierarchy, and reorganised navigation to make everyday tools easier to find—while preserving existing workflows.
My Role
UX/UI Designer
Team
IT / Development
Timeline
Oct 2025–Jan 2026

Refreshing the UI, Simplifying Navigation

SGB Partner Portal is the daily workspace where sales partners calculate energy tariffs, submit contracts, and check commissions. The brief began with a visual refresh to match the new corporate identity. Feedback from Customer Service and Operations also revealed crowded layouts, inconsistent UI, and key functions buried in navigation.

My focus was to make the existing portal clearer and easier to navigate: update the UI, strengthen the information hierarchy, and replace the growing Backoffice dropdown with a structured sidebar and account tabs. The redesign retained established business workflows and worked within the release’s technical constraints.

SGB Partner Portal tariff calculator displayed on a laptop against a dark background

The Problem

When partners negotiate prices with clients, they cannot see their estimated commission, nor can they view the price difference compared to the client’s current energy provider.

To understand the core issue within constraints, I conducted targeted micro-interviews with 6 participants: 4 external partners and 2 Customer Service colleagues. Each interview lasted 15 minutes and covered four core questions.

5/6Did not know the exact commission during live customer negotiations.
4/6Compared prices manually using Excel spreadsheets or mobile calculators.
5/6Needed a rough estimate on the spot, rather than an exact figure.
4/6Did not want clients to see commission figures during face-to-face meetings.

Key Insights

Interviews with partners, finance staff, and internal teams pointed to three priorities:

  1. Negotiation context: Partners lack an integrated way to demonstrate savings live during customer talks.
  2. Speed over precision: Partners need a fast, verbal estimate during calls, rather than a detailed financial breakdown.
  3. Privacy: Commission data needs on-demand visibility controls when clients are present.

User Journey Map

All three insights point to a crucial moment: the live sales conversation with the customer. I mapped the journey from deal preparation to post-sale commission tracking to identify where partners lose time and confidence.

StagePrepareQuotePersuadeCaptureAfterwards
DoingGather materialCalculate the priceExplain the differenceFill in the contractCheck the commission
ThinkingIs this deal worth it?How much cheaper is it?Will the customer hesitate?Don’t make a mistakeIs the money right?
PainDoes not know what they earnCurrent price calculated by handNumber not at handLong formAsk Finance
OpportunityEstimated commissionShow comparison directlyOne number to say aloudGrouped formCommission one click away

Two hypotheses, each with a way to check it

Hypothesis 1

If estimated commission and the price difference appear next to the quote, partners will use them during client talks.

Check: Concept testing with 6 users, focusing on utility and trust.

Hypothesis 2

If commission information is easier to find, Customer Service and Finance will receive fewer commission-related questions.

Check: Compare commission-related tickets and requests before and after launch.

Map the Existing System Before Changing It

Understand the work behind the interface.

I mapped the existing modules and sub-pages before changing navigation so that no critical functions would be omitted. The audit documented eight Backoffice items, three list-view variations, and approximately 29 input fields on one tariff-calculator screen.

8 Backoffice items3 list-view variations~29 calculator fields

These counts describe system complexity, not user behaviour. A high field count alone does not justify removing necessary business inputs. The synthesis focused on logical grouping, relationship mapping, and visual consistency.

For example, 9 out of 10 error messages shown at the top of an account page actually referred to fields on a different tab.

Portal structure diagram showing tariff calculations, orders, billing, customers, service and six account functions
Mapping the relationships between daily workflows and account functions.

Design Decisions

Decision 1: Navigation Architecture

Problem: Eight Backoffice functions were hidden within an ungrouped dropdown that only appeared after a click. The list grew with every release.

I sketched three structural alternatives:

I chose Option C: a fixed left sidebar with account functions as tabs. It accommodates incoming modules without requiring a structural redesign, while consistent active states help partners keep their place across deep sub-pages.

The trade-off: account discoverability

Moving account settings behind the user profile reduces discoverability for occasional tasks. An explicit label beside the user name would reduce this risk, and is the first refinement I would test.

Original account interface with top navigation and form error messages
Account interface
Redesigned account navigation with a persistent left sidebar and account tabs
Redesigned account navigation

Decision 2: Commission Visibility

Proposal: Put estimated commission and the provider price difference directly next to the quote, inside the tariff calculator and order workflow.

Constraint: IT architecture reviews revealed that the commission calculation engine and quoting service lacked an active data integration interface. Building one was outside the current development window.

Shipped solution: Consolidate commissions into one of six persistent tabs within the Account area. Move filters from a side drawer to a top toolbar and retain PDF/CSV exports.

This reduces click depth and makes commission information easier to find. It does not resolve the original need for inline commission estimates during a live quote.

Commission page with persistent account tabs, filters, providers and export actions
Commission overview
Order preview panel showing tariff and customer details
Order workflow

Validating with Users

I used Useberry for contextual questions and task-based usability evaluation, comparing the legacy and updated interface concepts. Tasks covered finding commission rates, inviting colleagues, submitting support tickets, updating banking data, and returning to the order page.

100%Completion of the tested workflows
7/7Reported usability rating

These results describe the small validation study, rather than a measured performance improvement across the entire partner population.

Participants also asked for an inline comparison card showing estimated annual commission and spread next to prices, clearly labelled as an estimate, with a one-click privacy toggle for client-facing meetings.

Static screenshot of a remote Useberry validation session showing a completed task in the SGB portal
Remote usability validation · Session screenshot

Key Insight

The updated navigation made commission information easier to access. Feedback also reinforced the need for contextual estimates during sales conversations—the part of the original problem that still depends on backend integration.

Limits and Reflection

Final SGB Partner Portal commission overview displayed on a laptop
The redesigned SGB Partner Portal.