Choosing Between P21 and DDI: A Practical Guide for Distributors

Selecting the right ERP system is one of the most important decisions a distribution business can make. The two compared are Epicor Prophet 21 (P21) vs. DDI System’s Inform ERP (DDI). Both systems are widely used in wholesale distribution, but they differ significantly in scale, flexibility, and long-term capabilities.

At Scaled Solutions Group, we help distributors evaluate these platforms every day. Here’s what you need to know—and how we guide you toward the right choice.

🏗️ Core Purpose & Ideal Fit

P21 (Epicor Prophet 21)

• Designed for inventory-heavy, high-volume wholesale operations.
• Strong fit for companies needing advanced replenishment, purchasing automation, and complex pricing.
• Provides modern cloud options and long-term scalability.

DDI (Inform ERP)

• Built specifically for small to mid-sized distributors.
• Known for being user-friendly with strong built-in functionality.
• Offers solid features for companies with simpler workflows.

🔑 Feature-by-Feature Comparison

1. Inventory & Warehouse Management

• P21: Advanced forecasting, automated replenishment, vendor scoring, and distributor-focused purchasing logic.
• DDI: Strong basic inventory tools but less sophisticated forecasting and replenishment.

2. Order Management & Purchasing

• P21: Fast order entry, counter sales support, CPQ integrations, and powerful purchasing automation.
• DDI: Easy-to-use order screens and purchasing tools, but lighter functionality for complex or high-volume environments.

3. Reporting & Analytics

• P21: Distributor-focused dashboards for margin analysis, turns, fill rates, and buying performance.
• DDI: Clear reporting with good built-in dashboards, but less configurable for deeper analytics.

4. Customization & Integrations

• P21: Highly flexible with strong integration options.
• DDI: More limited customization; best used “as-is” with its built-in structure.

5. Scalability

• P21: Ideal for mid-sized to large distributors and fast-growing businesses.
• DDI: Best for small to mid-sized distributors with simpler operational needs.

⭐ Why P21 Is the Better Choice for Most Distributors

P21 typically outperforms DDI for distributors who need more advanced purchasing, pricing, inventory forecasting, and scalability. While DDI is excellent for smaller operations, P21 offers the deeper functionality and long-term flexibility growing distributors require.

🤝 How Scaled Solutions Group Helps You Decide

At Scaled Solutions Group, we specialize in helping businesses not only compare platforms, but understand which solution supports their long-term strategy.

Our goal is to help you make a confident informed decision, not sell you a system that isn’t the right fit. We’re here to guide you every step of the way, from evaluation to implementation and beyond.

Ready to See Prophet 21 in Action?

Make your ERP decision with clarity.
Experience a personalized walkthrough based on your distribution workflows.

👉 Request a Demo