Overview

    • Waste disposal, recycling, gravel and sand, landfills and soil remediation
    • Employees: approx. 1,250
    • Project duration: 2 years and 3 months, October 2023 to December 2025
    • Core team: 20+ employees
    • Affected: 37 clients, 120+ employees
  • Challenge

    The OTTO DÖRNER Group faced the challenge of replacing a highly heterogeneous system landscape with a unified ERP solution – Microsoft Dynamics 365 Finance & Supply Chain Management. The complexity arose from the large number of 37 clients, the simultaneous management of two implementation partners, and the parallel development of a new workflow application for the incoming invoice process based on Microsoft Power Platform. The affected core areas – Finance & Controlling, Procurement, and Fleet Management – placed particularly high functional requirements on the project. At the same time, ongoing operations had to be maintained and organisational acceptance actively managed.

    Our Approach

    Our team took a leading role in this project, with the following responsibilities and activities:

    Overall Project Management 55BirchStreet took over the project early in its lifecycle to establish structure, clarity, and a consistent focus on the functionally critical target processes. Overall project management was carried out in close collaboration with the project owner, the Head of Finance & Controlling.

    Programme Steering 55BirchStreet was responsible for the end-to-end management of both implementation partners, the functional prioritisation and commissioning of work packages, and the establishment of a clear project, decision-making, and governance structure. In addition, the functional target processes and requirements across Finance, Controlling, Fleet Management, and Procurement were resharpened and documented as a binding reference framework for business units, IT, and service providers.

    Change Management The structured change management approach included the active involvement of business units, key users, and end users throughout the implementation and sprint phases. Key elements were the joint development of target processes, the integration of key users into sprint reviews and decision-making, transparent change and decision management, as well as the structured planning and orchestration of company-wide test phases and role-based training programmes.

    Power Platform Development 55BirchStreet led the development of a new incoming invoice workflow built on Microsoft Power Platform – covering functional design, testing, and go-live. This ensured seamless integration into the overall ERP rollout and delivered a scalable, user-friendly solution for one of the organisation's most process-critical workflows.

    Our Contribution

    The project delivery led to significant improvements and clear outcomes:

    • Transparent Governance: Establishment of clear decision-making pathways across all project levels
    • End-to-End Focus: Consistent focus on business-critical end-to-end processes
    • Business Unit Integration: Active co-creation and involvement of all relevant business units throughout the project
    • Cross-level Commitment: Shared commitment across all organisational levels – from leadership to end users
    • On-time Go-Live: The project was completed within budget. The go-live was achieved without rollback – a clear indicator of thorough preparation, robust testing, and strong organisational readiness.

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