Competing With 17,000 Organizations: How Great Plains Migration Capacity Tightens as 2029 Approaches
When Microsoft announced the end-of-life timeline for Dynamics Great Plains, most organizations focused on the final date. December 31, 2029 became the point of reference. That’s when support ends. That’s when action becomes unavoidable.
But the most expensive part of this transition is unlikely to arrive in 2029. It will show up earlier, as a vendor capacity problem.
Technical debt and security exposure are real concerns for Great Plains customers. But there’s another risk that’s easier to overlook: what happens when thousands of organizations try to migrate in the same window, all relying on a shrinking pool of expertise to get them there.
The Number Changing the Great Plains Migration Timeline
There are still an estimated 30,000 organizations running Great Plains today. Of those, about 57 percent have indicated they are not planning to migrate before end-of-life. That puts roughly 17,000 organizations on a similar trajectory, aiming for the same narrow window.
That number matters because migrations do not happen in isolation.
ERP transitions are shaped by people as much as by technology. They rely on experienced partners, implementation teams, consultants, and internal capacity, that do not suddenly become more available simply because a deadline exists.
Seventeen thousand organizations moving late off of Great Plains creates urgency for one reason: capacity. It means thousands of organizations competing for vendor time in the same window, while the partner ecosystem continues to shift away from Great Plains and toward modern cloud platforms.
Why 2027 Is the Real Pressure Point
The Great Plains timeline can look deceptively comfortable at first glance. With years still on the clock and updates continuing for a while, it’s easy to assume there’s plenty of room to decide, plan, and move at a reasonable pace.
“In practice, the pressure shows up when organizations start working backwards from 2029. If vendor selection and implementation can take 12–18 months, teams that want control over timing can’t wait until the deadline feels close—they need to start scoping options well before that window.
By 2027, several forces will converge at once. Organizations that have been watching the timeline move into planning mode, budget cycles begin to catch up, boards start asking for concrete plans, and conversations shift from “someday” to “soon.”
At the same time, the ecosystem around Great Plains will continue to shift away from GP itself. Fewer Microsoft partners and consultancies are maintaining large Great Plains teams as demand shifts toward modern cloud platforms. More senior consultants are focused on modern platforms that will still be growing in five years. And, implementation teams naturally prioritize work that fits their long-term direction.
Put those dynamics together and 2027 becomes an inflection point where availability tightens and organizations have less control over partner selection and timing.
Demand Isn’t the Only Constraint
As demand increases, the constraint shows up first in expertise.
Not every ERP partner is a good fit for every organization. Great Plains migrations vary widely in complexity, and many nonprofits and K–12 organizations need more than a partner who “knows GP.” They need a team that also understands sector realities like fund and grant structures, audit expectations, payroll and HR complexity, reporting requirements, and the operational rhythms of schools or mission-driven organizations.
That narrows the field quickly.
Partners with the right mix of Great Plains experience and nonprofit or K–12 depth are often scheduled out first. And as Great Plains winds down, fewer firms are expanding GP-focused practices. Many partners are shifting training and delivery capacity toward modern cloud platforms, which means there are fewer GP-focused resources available just as more organizations begin planning their move.
Late movers feel that squeeze most clearly: preferred partners are already committed, start dates are limited, and trade-offs increase. When that dynamic plays out across thousands of organizations on similar timelines, capacity becomes a competitive factor that shapes timing, scope, and cost.
Why Delaying Great Plains Migration Can Limit Your Options
Waiting often comes from constraint, not hesitation. ERP migrations are disruptive and resource-intensive, and they compete with the realities of audits, funding cycles, staffing gaps, and day-to-day operational demands. As long as the system is still working, postponing a major transition can look like prudent stewardship.
In isolation, that logic holds.
The tension appears when that same reasoning is applied across the market at scale. When large numbers of organizations reach the same conclusion independently, the outcome is no longer individual. It becomes systemic.
That’s how a sensible decision creates consequences no single organization can control. When that many organizations arrive at roughly the same conclusion about timing, even well-run teams find that the environment around them has changed. Planning becomes reactive rather than deliberate, not because of poor execution, but because the conditions have shifted.
This is the moment when delay stops feeling neutral and starts influencing cost, flexibility, and choice in ways that are harder to reverse.
When the Market Tightens, Planning Becomes an Advantage
As the Great Plains ecosystem shifts and partner capacity tightens, timing starts to matter in a very practical way. The earlier an organization begins planning, the more control it keeps over sequencing, resourcing, and decision-making, even if the actual move happens later.
This is where planning becomes an advantage rather than a task on the to-do list. It creates room to evaluate options, align budgets, and choose a partner based on fit, not availability. It also reduces the likelihood of having to compress work into an inconvenient period because the preferred start dates are already taken.
In a market where large numbers of organizations are heading in the same direction, planning early is less about urgency and more about preserving choice.
Planning Early Protects Flexibility
Once timing starts to matter, the cost of waiting shows up in places that aren’t always obvious at first. The cost of waiting isn’t limited to what you pay a partner later. It also shows up in what you lose the ability to do along the way.
Planning early creates room to understand what’s actually in your Great Plains environment—what’s essential, what’s outdated, and what has simply become “how it’s always been done.” It gives you space to clean up data with intention, align stakeholders before decisions get locked in, and use the transition to strengthen controls rather than recreate old workarounds in a new system.
It also creates the option to migrate in phases. When timelines aren’t compressed, organizations can sequence work more thoughtfully, run critical processes in parallel where it makes sense (like payroll), and reduce disruption and stress on teams who still have day jobs to do.
Planning late narrows that room. Even if the go-live date is still months away, the project starts to behave differently once the runway feels short. The focus shifts toward meeting a date and managing immediate dependencies, which often pushes higher-value work later—process improvements, data cleanup, and decisions that benefit from stakeholder alignment. The transition may still succeed, but it tends to cost more in time and effort, and it’s less likely to deliver the broader operational gains that made the move worth doing in the first place.
That’s why starting early doesn’t mean migrating tomorrow. It means keeping enough room in the timeline to make smart choices, not rushed ones.
Why Great Plains End-of-Life Is a Board and Finance Concern
Boards don’t need to be involved in every technology decision, but this one has board-level consequences because timing can change the financial outcome. Great Plains end-of-life creates a required transition, and required transitions are exactly where governance matters. When the organization chooses to plan is often what determines whether the cost is manageable or whether it arrives as an unpleasant surprise.
Finance leaders will recognize the pattern. The same project can look very different depending on when it is scoped and scheduled. Entering a crowded market late tends to reduce flexibility, narrow partner options, and push organizations into timelines that are harder to control. Cost increases often come from timing pressure and constrained choices, rather than from any deliberate decision to invest more.
This is why boards should care about planning even if they are not pushing for an immediate migration. Early planning protects choice and predictability. It makes it easier to explain the costs, the timeline, and the trade-offs in advance, rather than justifying them after the fact.
The Better Question to Ask Now
The most useful question isn’t “when do we migrate.” That question invites a date-driven answer, and dates are exactly what become harder to control in a crowded market.
A better question is whether the organization has enough clarity to choose its path deliberately. Do we understand our current environment well enough to estimate scope? Do we know what internal capacity we can realistically dedicate? Do we have a timeline that protects audit and operational cycles? Do we have a partner strategy we trust?
Those are planning questions, not migration questions. They keep the organization in control even if the move is not immediate
What Acting Early Actually Looks Like
By this point, the takeaway isn’t that every organization should be migrating immediately. It’s that the work that comes before vendor selection often takes longer than teams expect—especially if you want to make a confident decision.
Early planning is less about picking a new system and more about understanding your current environment and documenting what you actually need. That includes mapping core processes, identifying must-have requirements, reviewing integrations and reporting needs, and clarifying what “success” looks like across finance, HR/payroll, and leadership.
If you want a practical way to structure that pre-work, Sparkrock’s on-demand session, How to Build an ERP Evaluation Framework for Nonprofit Organizations, walks through a proven 5-step evaluation framework—covering how to build a cross-functional team, compare vendors, and run demos that reflect real-world needs. You can watch the on-demand webinar here.
Once that foundation is in place, vendor conversations become far more productive. You can pressure-test assumptions about scope and timing, understand realistic implementation windows, and see how a transition would intersect with audits, fiscal cycles, staffing capacity, and governance expectations.
That work doesn’t commit an organization to move. It gives leadership the information needed to choose a path deliberately—rather than inheriting one later under tighter conditions.
In a landscape shaped by thousands of organizations heading toward the same outcome, that distinction matters. The organizations that fare best aren’t the ones that move fastest. They’re the ones that start early enough to stay in control of the process.
A Practical Next Step
If Great Plains is on your roadmap, this is a good time to start exploring options—not finalizing them.
For most organizations, the first step is clarity: understanding what paths are available, and what a realistic timeline looks like for your organization based on requirements, funding, internal capacity, and audit or fiscal cycles.
That exploration can include a few common directions, depending on your needs:
- moving to a modern cloud ERP platform (for example, a cloud ERP built on Microsoft technology),
- moving to Business Central directly,
- or choosing a vertical-specific solution designed for nonprofit or public sector requirements.
To make those conversations practical, it helps to start with a few grounding questions:
- What do we need the next system to do that Great Plains can’t support well anymore?
- What integrations, reports, and workflows are truly critical—and which ones can be simplified?
- What internal capacity do we realistically have to support evaluation and implementation alongside day-to-day work?
- What timeline protects our key cycles (audit, budgeting, payroll), and what partner availability exists within that window?
Our team works with organizations at this stage to help clarify scope, timing, and trade-offs—so you can see what your options look like before the market narrows them for you.