Four Production Modes in Manufacturing
Before diving deep into the ETO-to-CTO transformation, let us first clarify the four most common production modes in manufacturing, listed in descending order of customization:
- ETO (Engineer-to-Order) — Every order requires engineering design; products are highly customized, typical for heavy equipment and specialty machinery
- CTO (Configure-to-Order) — Configuration combinations are assembled from predefined modules and options, typical for servers, elevators, and commercial vehicles
- MTO (Make-to-Order) — Production begins after receiving an order using standard specifications, typical for custom furniture
- MTS (Make-to-Stock) — Products are manufactured before being sold, typical for consumer electronics
For manufacturing enterprises with complex products and diverse customer demands, ETO and CTO are the two most common modes. Transforming from ETO to CTO has become a strategic choice for an increasing number of companies seeking to enhance competitiveness.
The Challenges of ETO Mode
The core characteristic of ETO mode is that every customer order may trigger new engineering design work. After the sales team receives a requirement, the R&D team must be involved to assess technical feasibility, design new solutions, and create BOMs and drawings before quoting and production scheduling can proceed. When facing growing market competition, this mode exposes severe efficiency bottlenecks:
- Long quoting cycles — Every quote requires R&D involvement; even simple requests take 3-5 business days, while complex projects may take weeks
- Engineering resource bottlenecks — Senior engineers' time is heavily consumed by repetitive solution assessments and BOM design, preventing them from focusing on innovative R&D
- Persistently high costs — Engineering design costs for each order are allocated to product pricing, making customization costs far higher than standardized configurations
- High quality risks — Every from-scratch design introduces new risk points, and validated design experience is difficult to systematically reuse
- Difficult to scale — Business growth is constrained by engineering team capacity, with sales order intake far outpacing R&D responsiveness
According to industry research, enterprises using a pure ETO model find that on average 40% of engineering design work is redundant — similar customer requirements are repeatedly designed from scratch, and a large volume of existing design assets sit idle.
Core Advantages of CTO Mode
The essence of CTO (Configure-to-Order) mode is transforming products from "custom design every time" to "combination configurations based on predefined modules." Enterprises pre-design product platforms, functional modules, and configuration options, and the sales team meets customer personalization needs by selecting and combining these modules — without triggering engineering design processes each time.
The core advantages of CTO mode include:
- No reduction in customization capability — Through modular combinations, the vast majority of differentiated customer needs can still be met
- Delivery efficiency multiplied — Configuration yields solutions and quotes instantly without waiting for engineering design, reducing quoting cycles from weeks to hours
- More controllable quality — Every module has been thoroughly verified and tested, ensuring quality in combined solutions
- Significantly lower costs — Module standardization creates economies of scale in procurement and manufacturing, substantially reducing per-unit costs
- Easy to scale — Sales teams can independently complete configuration and quoting without relying on engineers, so business growth is no longer constrained
The Core Role of CPQ in ETO-to-CTO Transformation
The transformation from ETO to CTO is not achieved overnight — it requires systematic efforts including product architecture restructuring, configuration rule modeling, and sales process reengineering. CPQ systems play an irreplaceable core role in this transformation:
Product Modular Modeling
CPQ's configuration engine is the core platform for hosting CTO product logic. After the enterprise decomposes products into base platforms, functional modules, optional components, and parameter options, a complete product configuration model is built in CPQ. The configuration model defines relationships, constraints, and dependencies between modules — which modules can be combined, which are mutually exclusive, and which parameters change in tandem.
Configuration Rules Engine
CPQ's rules engine systematizes the product knowledge that previously existed only in senior engineers' minds. Technical constraints (such as voltage matching, load limits, dimensional compatibility), industry regulations (such as safety standards, environmental requirements), and business rules (such as regional availability, channel pricing) are all encoded as executable configuration rules. When salespeople configure products, the system automatically validates each selection, ensuring the final solution is 100% feasible.
Guided Configuration Experience
CPQ provides a guided configuration interface that simplifies complex product selections into a step-by-step, question-and-answer process. Salespeople need not understand the underlying engineering logic — they simply answer business questions about the customer's application scenario, performance requirements, and budget range, and CPQ automatically derives the optimal product configuration.
Intelligent BOM Generation
When sales completes a product configuration, CPQ automatically generates a complete manufacturing BOM, including all modules, assemblies, and component lists. This BOM can be directly pushed to the ERP system to trigger procurement and production, without R&D team conversion in between — an efficiency improvement unimaginable under the ETO model.
The essential value of CPQ lies in transforming "engineers' expert knowledge" into "system-executable configuration logic," giving every salesperson engineer-level product configuration capabilities. This is the technical core of the ETO-to-CTO transformation.
Phased Transformation Roadmap
We recommend that enterprises adopt a gradual transformation strategy rather than a wholesale replacement of the ETO model all at once:
Phase 1: Identify the Scope of Configurable Products
Analyze historical order data to find product lines with high demand recurrence and design similarity. Typically, 80% of customer needs can be covered by 20% of module combinations. Prioritize converting these products from ETO to CTO for quick wins.
Phase 2: Build a Modular Product Platform
The R&D team re-architects target product lines into modular designs: defining base platforms, standard modules, optional components, and configuration parameters. Simultaneously, the corresponding product configuration models and rule frameworks are built in CPQ.
Phase 3: Sales-Side Transition and Enablement
Train the sales team to use CPQ for product configuration and quoting. In the initial phase, retain engineering review as a safety net — CPQ-configured solutions are verified and confirmed by engineers. As configuration rules mature and team confidence builds, gradually reduce manual reviews.
Phase 4: Continuous Optimization and Expansion
Based on actual operational data, continuously optimize configuration rules and bring more product lines into the CTO model. For the few special requirements that genuinely need fresh designs, retain an ETO channel as a supplement — ultimately forming a hybrid model of "CTO-primary, ETO-supplementary."
Transformation in Practice: An Equipment Manufacturer's ETO-to-CTO Journey
An industrial equipment manufacturer's product lines covered mixing equipment, conveying equipment, and environmental protection equipment. Before the transformation, the company operated 100% in ETO mode, requiring 2-3 engineers per order for solution design, with an average quoting cycle of 7 business days.
By deploying FengChao CPQ and implementing modular product restructuring, the company completed the CTO transformation of its mixing equipment product line within 18 months:
- Consolidated 200+ historical product models into 3 base platforms + 45 functional modules + 120 optional components
- Built over 500 configuration rules and constraints in CPQ
- 85% of customer requirements could be fulfilled directly through CPQ configuration, without engineering design involvement
The transformation results were significant:
- Quoting cycle: Reduced from 7 days to 4 hours (standard configurations) / 1 day (complex configurations)
- Engineering resources freed: Solution design workload reduced by 70%, with engineers returning to core R&D
- Product costs: Module standardization reduced procurement costs by 15% and improved manufacturing efficiency by 25%
- Order growth: Sales team capacity released, with annual order volume growing by 40%
Begin Your CTO Transformation Journey
Transforming from ETO to CTO is not merely a technology project — it is an upgrade of the enterprise's product strategy and operating model. CPQ systems serve as the technical fulcrum of this transformation — enabling modular product designs to become truly operational, deployable, and scalable.
FengChao CPQ has helped multiple equipment manufacturing, industrial automation, and electrical equipment enterprises successfully transform from ETO to CTO. If your enterprise is exploring this direction, please contact the FengChaoCloud team. We will provide a complimentary product configurability assessment and transformation planning consultation.