The CPQ Blog

Next-Gen CPQ: Merging Rules with AI for Explainable Configuration

Written by Magnus Fasth | Nov 11, 2025 7:00:00 AM

For more than two decades, configuration systems have helped industrial and technology companies translate complex product portfolios into accurate, consistent quotes. These systems rely on structured rule logic to define what can be combined, how dependencies behave, and how prices are calculated.

Each rule represents knowledge captured from engineering or product management — together forming a digital model of how the company designs, sells, and delivers its products. This structure is what allows CPQ systems to guarantee precision and compliance across large organizations and international markets.

When Rules Reach Their Limits

As portfolios expand and markets accelerate, maintaining thousands of configuration rules becomes increasingly complex. Each product introduction, pricing update, or regional requirement adds another layer of logic that must be validated. Over time, this web of dependencies slows innovation and limits transparency.

The challenge isn’t that CPQ fails; it’s that business now moves faster than any purely rule-based system can adapt. The next generation of CPQ must combine correctness with understanding — merging structured logic with reasoning.

From Rules to Reasoning

Reasoning-based configuration marks a fundamental shift.
Rules remain the backbone of product integrity, but when combined with large language models (LLMs) and Retrieval-Augmented Generation (RAG), configuration systems become both dynamic and explainable.

  • Symbolic logic ensures technical correctness.

  • LLMs interpret user intent and context.

  • RAG grounds AI output in verified configuration data.

Together, these layers form a hybrid AI-CPQ architecture that is flexible, transparent, and trustworthy.

AI + CPQ: Explainable Configuration

Instead of hard-coding new rules for every scenario, teams can describe desired behaviors in natural language.
The system then interprets those descriptions, references configuration logic, and generates responses that remain fully validated.

This approach doesn’t replace CPQ — it extends it. Businesses retain control and compliance while gaining speed and adaptability. The result is a CPQ that can explain every recommendation and validate every outcome.

Knowledge That Explains Itself

In a reasoning-driven CPQ environment, product knowledge becomes interactive.
Users can ask:

  • Why is an option restricted?

  • What dependencies apply?

  • Which configurations meet a regional standard?

The AI retrieves the underlying logic and supporting documentation, presenting it in clear, contextual language.
This transparency shortens onboarding, strengthens collaboration, and builds trust across engineering, product, and sales teams.

Integrating RAG: Connecting Knowledge Sources

By combining CPQ with retrieval intelligence, companies bridge data silos between configuration, PIM, and engineering systems. The AI retrieves real-time, validated data, ensuring sales teams always operate on the same knowledge base. This unified structure accelerates product launches and ensures that every quote reflects the most accurate product information.

Built on CPQ Experience Across Industries

At cpq.se, we have seen the same challenge across industries — capturing expert knowledge while keeping configuration maintainable. The move from rules to reasoning leverages decades of CPQ experience and adds what was missing: a system that understands why as well as what.

An AI-first configuration model integrates:

  1. LLMs for contextual understanding,

  2. RAG for verified grounding, and

  3. CPQ for rule enforcement.

This trio gives organizations a practical path toward explainable, adaptive, and sustainable configuration.

The Future of CPQ Is Explainable

As AI becomes embedded in enterprise configuration, explainability becomes the new trust signal. Every AI-driven recommendation must be traceable back to verified logic and data.
This is essential for industries where compliance and accuracy define success.
It also empowers teams to collaborate with confidence — transforming configuration from a technical task into a transparent, intelligent process that supports growth and customer confidence.

What Comes Next

In our next article, we’ll explore why large language models alone are not enough for configuration and how Retrieval-Augmented Generation (RAG) keeps AI grounded in verified product data and CPQ logic.

At cpq.se, we believe the future of configuration lies in the union of generative AI, retrieval intelligence, and rule-based precision — working together to make configuration both intelligent and explainable.

 

FAQs 

Q1: What is reasoning-based CPQ?
Reasoning-based CPQ combines rule logic, generative AI, and RAG to create configuration systems that can explain and adapt decisions.

Q2: How does RAG improve CPQ accuracy?
RAG ensures every AI response is grounded in verified configuration data, eliminating hallucinations and maintaining rule compliance.

Q3: Is reasoning-based CPQ replacing traditional rule systems?
No. It builds on them — adding interpretability and conversational intelligence without removing control.

 

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