This article forms part of a Business News Wales series based on Menzies’ white paper, Buying a Business: What Should You Consider in Your Acquisition Journey?, exploring how organisations can approach acquisitions with greater clarity, discipline and confidence.
Closing the deal isn’t the finish line, it’s the starting point.
For many business owners, the completion of an acquisition marks the culmination of months, sometimes years, of work. Negotiations are finalised, contracts are signed, and the focus shifts, often briefly, to celebration. But in reality, the most critical phase of the acquisition journey is only just beginning.
What happens in the first 100 days after completion will often determine whether a deal delivers on its promise, or quietly underperforms.
Across Wales, more SMEs are turning to acquisition as a route to growth. But while significant time and resource are invested in identifying targets, structuring deals, and negotiating terms, far less attention is often given to what happens next. Integration planning can be vague, delayed, or treated as an operational afterthought.
That is where value is most commonly lost.
The Menzies white paper, Buying a Business: What Should You Consider in Your Acquisition Journey?, highlights the importance of a structured post-acquisition approach, including a clearly defined “100-day plan” to guide integration and performance in the immediate aftermath of a deal . Without it, even well-executed transactions can struggle to deliver their intended outcomes.
The reason is simple: acquisitions do not create value at the point of purchase. They create value through execution.
In the early days following completion, businesses face a series of immediate and complex challenges. Leadership teams must align on strategy, communicate effectively with employees, reassure customers and suppliers, and begin integrating systems and processes. At the same time, they must maintain business-as-usual performance, often under increased scrutiny.
Without a clear plan, these competing priorities can quickly become overwhelming.
One of the most critical elements is communication. Employees in the acquired business are often uncertain about what the change means for them. Without clarity, rumours can spread, morale can dip, and key talent may begin to look elsewhere. The same applies to customers and suppliers, who may question whether service levels or relationships will change.
A well-structured 100-day plan ensures that communication is not reactive, but proactive, clearly setting out the vision for the combined business and what it means for each stakeholder group from day one.
Equally important is accountability. Integration is not a single task; it is a series of coordinated actions across different areas of the business. The white paper emphasises the need to assign clear responsibilities, timelines, and deliverables to ensure that progress is measurable and consistent. Without this structure, integration efforts can drift, with key initiatives delayed or deprioritised.
Another common pitfall is the failure to act on due diligence findings. By the time a deal completes, a significant amount of information has been gathered about risks, inefficiencies, and opportunities within the target business. But too often, these insights are not translated into action. A 100-day plan provides the framework to address these issues early, turning insight into impact.
Systems integration is another area where early momentum matters. Aligning financial reporting, IT infrastructure, and operational processes can unlock efficiencies and provide better visibility across the combined business. Delays in this area can create duplication, confusion, and missed opportunities for synergy.
Perhaps most importantly, the first 100 days set the tone for the future. They establish how decisions are made, how teams collaborate, and how quickly the organisation can adapt. A strong start builds confidence and momentum. A weak start can be difficult to recover from.
For SME leaders, this presents a clear challenge. Acquisition is not just a financial transaction, it is an operational transformation. And like any transformation, it requires planning, resource, and leadership focus.
For policymakers and the wider Welsh economy, the implications are equally significant. As more businesses pursue growth through acquisition, the ability to execute effectively post-deal will play a key role in determining whether that growth is realised. Successful integrations can drive productivity, strengthen businesses, and support long-term resilience. Poorly managed ones can do the opposite.
The message is clear. While negotiation may secure the deal, execution determines its success.
Businesses that approach acquisition with a clear post-completion strategy—grounded in structure, communication, and accountability, are far more likely to realise the value they set out to achieve. Those who do not risk seeing that value erode before it has a chance to materialise.
Because in acquisition, success is not defined by the deal you close. It is defined by what you do next.
