This article is relevant if you are a NetSuite operations manager, supply chain planner, or system administrator evaluating how to run Material Requirements Planning (MRP) in NetSuite but find the native planning engine too complex or rigid for your organization’s needs.
TL;DR
NetSuite’s Material Requirements Planning (MRP) engine is a comprehensive, robust solution. But many teams require a lighter model that reflects their existing planning practices and better aligns with their business operations. Prolecto’s Lightweight MRP approach consolidates demand signals from NetSuite and applies business-specific rules through a custom, client-owned application. This approach eliminates reliance on spreadsheets, accelerates decision-making, and aligns planning with how teams already operate.
Background
Organizations that want to automate supply order creation encounter two recurring patterns: (1) teams rely on spreadsheets or ad hoc methods that sit outside of NetSuite, which limits scale and constrains growth, or (2) teams are forced into an implementation that is too demanding for their actual needs. While NetSuite offers rich demand data and a capable planning framework, configuring and maintaining the full MRP engine often exceeds what most teams require. The result is partial implementations, inconsistent adoption, and continued dependence on Excel.
In December 2023, Marty Zigman discussed how to intelligently drive NetSuite Supply plans and highlighted our thinking on solving basic Reorder Point and Preferred Stock level challenges in NetSuite’s basic purchasing triggers.
Recently, we’ve extended this approach to encompass a full MRP lightweight model. Prolecto’s Lightweight MRP approach respects established workflows, reduces administrative overhead, and scales with growth.
Key Requirements Driving MRP Adoption
When organizations evaluate MRP, two recurring needs emerge:
1. Demand Level Information Consolidation
Planners must consolidate information in one place to create supply orders. Planners must be able to compile data from sales orders (possibly quotes and opportunities), forecasts, historical usage, and exceptions into a single view.
2. Model Supply Plans to Fulfill Demand
Planners must incorporate logical rules that align with operational requirements. For example, factors such as transfer lead times, location size constraints, and worker availability may all drive supply recommendations.
Many teams struggle when existing tools cannot meet both demand and supply planning needs. Some teams require only a limited subset of data, yet are pushed toward a full MRP solution. Others rely on rules that NetSuite’s standard engine cannot represent, so they continue with tribal processes. The result is a reliance on manual work that prevents planning from scaling with business growth.
Prolecto’s MRP Lightweight Approach: A Custom Client-Owned Application
In this project, our customer relied on planners to extract significant data from NetSuite. The data was extracted using various saved searches that were then copied into an Excel workbook. Additional data was collected outside of NetSuite and added to the workbook. Planners then create pivot tables, validate data elements and produce outputs. This process typically took several days of reiterations. Since data wasn’t acted on immediately, changes in the environment hindered accuracy. The company was dependent on a single individual to perform the planning activities.
Our first thought was: If the information we need is already in NetSuite, why can’t we consolidate it as one would in Excel? We can!
Using the Prolecto ECF2.0 framework from Prolecto Labs, the application now sits inside NetSuite and connects directly to NetSuite data, natively. The solution consolidates demand signals and applies rules that reflect how the organization already plans. The output generates clear supply recommendations all within NetSuite, ready for execution.
By producing visibility similar to the way it had been modeled in Excel, the planner is heard, centered and is fully equipped to take action to help drive the supply plan.
Key features of the planning module expose relevant item metrics and produce recommendations for order quantities. The recommendations can be used or replaced by planners, giving them flexibility prior to order creation.
In addition to planning and order creation, our customers needed to process Item Receipts, Order Fulfillments, and Bin allocations. We added these features to the application, providing full functionality to supply chain management and execution.
Benefits to the Business
When we take control over the model and make it work as a lightweight NetSuite application, benefits include:
- Lower cost: Our client owns the application, eliminating any ongoing recurring license fees.
- Faster development: Prolecto’s ECF 2.0 Lab accelerator provides the framework so analysts can focus on data modeling and business rules. Developers work on application UX and performance.
- Improved accuracy: Recommendations are based on tested structured queries, not spreadsheet formulas and lookup tables.
- Greater flexibility: Non-standard factors, such as bin capacities or site-specific rules, can be included.
- Unified workflow: Planners, warehouse managers, and warehouse workers all act within the same application system.
- Custom Integrations: Embedded integrated connections, such as with OzLink, eliminate the need for separate third-party integration tools.
What Makes It “Lightweight?”
The Prolecto ECF Framework allows us the freedom to rapidly create high-performance business applications that respect NetSuite’s database and logic. However, we are not constrained by NetSuite’s UI. Our custom solution is modeled to be simple and highly suitable for real use by offering:
- Minimal configuration: No need for item-by-item resupply parameters or the full MRP engine configuration and maintenance effort.
- Flexible data inputs: Incorporates sales orders, forecasts, usage history, and custom planning logic.
- Actionable interface: Planners view consolidated demand and recommended supply in one place. Actions and results are immediate and can be viewed by all stakeholders.
- Operational alignment: Created supply records flow directly into fulfillment and receiving tasks, structured in ways operators already understand, reducing onboarding effort.
| Functional Area | Manual/Excel-Based Solutions | Native/3rd Party MRP | Custom NetSuite Solution |
|---|---|---|---|
| Costs | Low technical costs, 3rd party data tools licenses. Significant labor costs and lowered productivity. | Implementation costs to install and configure solutions, plus ongoing license fees. | Costs are associated with solution design, development, testing and ongoing support. Effort can vary with complexity. |
| Plan Modeling | Using Excel and other manual solutions, complex algorithms can be invented. | MRP models are restricted to NetSuite or the systems’ pre-designed architecture. This area of flexibility may evolve with AI-enabled model designs. | Like Excel, custom solutions take advantage of nearly limitless modeling options. |
| Data management | Manual imports and exports.
Non-scalable and prone to data execution errors. |
All data is stored and accessed within the ERP environment. | All data is stored and accessed within the ERP environment. |
| Customizations | Users often develop customizations in 3rd-party systems, like macros and workflows. Customizations can be difficult to understand and may be written by non-professionals. | MRP engines are not directly customizable. | Solution architecture should allow for enhancements to model logic, and take advantage of new offerings from within the core ERP system. |
Choosing the Right Path for MRP in NetSuite
There is no single approach that works for all organizations. The right solution depends on planning style, team readiness, and operational complexity. Before moving forward, it’s important to consider the following factors:
Know Your Options
Choosing the right MRP strategy requires a clear understanding of what’s available, and what aligns with your specific business needs. At Prolecto, experts with experience in the options bring wisdom to the process.
- NetSuite’s native MRP
- 3rd party tools
- Custom NetSuite applications
- Excel-based analysis with saved searches with file imports and exports
Assess Team Readiness
Teams must also assess their readiness by asking:
- Are the base operations sound? Can we trust the information when we consolidate it for action?
- Does your team have the resources to manage a complex planning engine?
- Are planners dependent on spreadsheets or personal knowledge?
- Are your planning teams and execution teams fully aligned on the objectives? Do they have tools to cooperatively work together?
- Would adoption improve if the system guided them with a simplified interface?
Our clients often come to us with requests to support an MRP solution. What we find is that other important supply chain processes are left out of the conversation. Addressing the needs for each stakeholder, whether planning, order management or order execution, helps design an end-to-end solution that meets the overall supply chain requirements. Our single application solution is designed with this in mind.
Understand Your Planning DNA
- Do you have planning rules or exceptions not represented in standard models?
- Are you coordinating across multiple sites, product lines, or seasonal patterns?
- Is agility more important than comprehensive configuration?
The NetSuite platform can support each of these paths. The key is to choose one that supports growth without forcing teams into unnecessary complexity.
Key Takeaways
As we work with clients in these situations, we see the following patterns that are often reflective of their real-world perspectives:
- Planning systems should enable growth by aligning with how teams already work, not by adding weight they cannot sustain.
- NetSuite’s native MRP is robust, but when adoption falters, a lighter model is often the practical choice.
- Reliance on spreadsheets is a signal that planning is constrained. When logic moves outside NetSuite, accuracy, accountability, and scalability all suffer.
- Lightweight approaches succeed because they respect each organization’s planning DNA while still producing actionable recommendations in NetSuite.
- Client-owned applications accelerate work and preserve control within the business, reducing dependency on external parties.
Ready to bring clarity and confidence to your MRP process? Let’s have a conversation. Sign up to get notified of new articles and receive the latest NetSuite insights from our experts.
