Recommendation Engine

Build Recommendations Around Intent, Context and Business Rules

Create recommendation logic that does more than “customers also bought”. Match products to the reason someone is buying, explain the fit and respect the rules of your business.

Hands linking running shoes, a water bottle and a running pack into a compatible product set
Recommendation EngineRecommendations connected by customer intent, product fit and merchant rules.

Built around your stack

Possible connections, scoped to your systems and permissions.

ShopifyCommerce platform
HubSpotCustomer context
BigQueryBusiness signals
PostHogJourney measurement

Start with the decision a recommendation must support.

A useful alternative, compatible accessory and upgrade serve different customer decisions. Define the recommendation placement and desired next action before choosing ranking techniques. The logic should distinguish a hard eligibility rule from a preference or commercial priority, so a high score cannot make an incompatible product acceptable.

See the workflow

See the logic behind a useful recommendation.

Select a step to see how the context, output and controls connect.

Context

Capture the reason for buying.

A running kit and a casual footwear purchase require different recommendations, even if they start from the same product.

Illustrative workflow
Intent
Prepare for a trail run
Product context
Running footwear
Preference
Carry water comfortably

Recommendation inputs.

Intent and customer context

Use the stated goal, current journey and behavioural context where permitted. A first-time visitor can still receive useful recommendations from explicit needs.

Catalogue and product relationships

Compare attributes, compatibility, alternatives, accessories and bundle relationships using reliable product information.

Inventory and merchant rules

Respect availability, exclusions and business priorities. Define freshness expectations and safe behaviour when a source cannot be checked.

Outputs that make the next step easier.

Ranked products and alternatives

Present a small relevant set with reasons to consider each option and clear tradeoffs.

Bundles and compatible accessories

Suggest combinations that satisfy documented compatibility rules and customer needs.

Upgrades with explanations

Explain the additional benefit and pricing context instead of assuming the most expensive option is the best fit.

Give merchants visible rules and overrides.

A merchant interface can expose exclusions, priority rules, preview scenarios and override history. Evaluate proposed rule changes before applying them broadly. If a product is unavailable or a compatibility relationship is uncertain, the system can remove it, flag it for review or explain the limitation. Business control belongs in the recommendation logic and the operator experience.

Measure whether recommendations help.

Define a baseline and measure recommendation click-through rate, product engagement, add-to-cart and conversion for the relevant journey. Average order value may be useful for a bundle or accessory experience. Assisted revenue should only be reported when attribution supports it. Review irrelevant matches, stock-related failures and abandonment alongside commercial metrics; no outcome increase is assumed.

From ranking assumptions to an evaluated MVP.

Lumethica can map product relationships and rules, define representative recommendation scenarios, prototype the presentation and build a focused integration. Rules or existing catalogue signals may be enough for a first version. More complex models should be introduced when the available data and measured results justify them.

Related

Explore related solutions.

FAQ

Common questions

Do we need historical purchase data?

Not necessarily. A first version can use stated intent, structured attributes and merchant rules. Behavioural or purchase signals can be evaluated when sufficient permitted data exists.

Can recommendations respect stock and compatibility?

Yes. Eligibility rules can filter products before ranking, with freshness checks and defined fallbacks when inventory or compatibility data is unavailable.

Can our team change recommendation rules?

A scoped merchant interface can support rule changes, previews and overrides with appropriate permissions and an audit trail.

How do we know the engine is working?

Agree on representative relevance scenarios and a commercial baseline, then evaluate customer actions and error cases in a pilot. Revenue attribution depends on the measurement setup.

Define the first useful release

Bring the workflow. We can help define and build the product.

Start with your catalogue, current process and the outcome you want to improve.