Enabling a Seamless Transition to a Next-Generation Market Connector for a Leading Belgian Energy Supplier

Context

As the Belgian energy market continues to evolve, suppliers must adapt to changing market regulations, increasing digitalization, and growing customer expectations. To support future growth and operational efficiency, a leading Belgian energy supplier embarked on a strategic transformation program to replace its existing market connector with a modern, cloud-native solution.

The new ERP system was designed to facilitate compliant market communication, support end-to-end supplier processes, integrate with existing backend systems, and establish a robust and sustainable foundation for future developments. The transition involved significant system integrations and a large-scale data migration, all while maintaining business continuity.

The Challenge

Developing a new, core market platform in the energy sector is a complex undertaking that impacts multiple business-critical processes, teams, etc. The main goal was delivering a successful go-live within an ambitious one-year timeframe.

The organization needed to:

• Align diverse business, market and system requirements with a newly developed platform.

• Ensure smooth integration with key backend systems, including CRM and invoicing applications.

• Migrate large volumes of operational and customer-related data while safeguarding data quality and continuity.

• Coordinate various stakeholders across business and IT departments.

• Test newly developed functionalities before deployment.

• Minimize operational impact during the transition (i.e. go-live).

Balancing these objectives while maintaining day-to-day operations required strong functional leadership, stakeholder alignment, and rigorous quality assurance.

Our Approach

To ensure a successful transition, a structured approach was adopted throughout the project lifecycle.

Translating Business Needs into Functional Solutions

Through a series of workshops and stakeholder sessions, business and system requirements were gathered, analyzed, and translated into clear functional specifications. This ensured that development teams had a precise understanding of business expectations and market requirements.

Ensuring Solution Quality

Extensive functional testing was performed throughout the development process to validate newly built capabilities. Defects were identified, analyzed, prioritized, and managed to ensure a stable and reliable solution.

Facilitating Stakeholder Alignment

Acting as the central point of contact between business and technical teams, continuous communication was maintained throughout the project. Regular demonstrations of newly developed functionalities provided stakeholders with visibility into progress and enabled early feedback.

Supporting Adoption and Go-Live

Comprehensive user documentation and guidance materials were developed to support end users. Following deployment, dedicated hypercare support ensured that any issues were resolved quickly, allowing the organization to transition smoothly into the new environment.

Impact

Successful Go-Live Within One Year

The new platform was successfully implemented and brought into production within a one-year timeframe, meeting key project objectives and timelines.

Seamless Data Migration

Business-critical data was successfully migrated to the new environment while maintaining data integrity and operational continuity.

Minimal Business Disruption

Thanks to careful planning, extensive testing, and close stakeholder collaboration, the transition was executed with minimal impact on daily operations.

A Future-Proof Foundation

The implementation established a modern, scalable market connector capable of supporting evolving market requirements, new business capabilities, and future growth initiatives.

Curious about how TAG can deliver similar results for your business? Let’s connect.
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