RELEX Assortment Planning review
A broad enterprise platform for connected assortment, forecasting, and open-to-buy decisions.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
RELEX Assortment Planning is a web- and API-based product for retailers, wholesalers, and manufacturers managing complex merchandise and supply-chain operations. It supports assortment decisions by category, store cluster, individual location, and sales channel, connecting those decisions with forecasting, replenishment, planograms, inventory, pricing, and promotions on the RELEX retail planning platform. Enterprise retailers looking for end-to-end assortment planning are the clearest fit.
The product’s strongest area is the breadth of planning decisions it brings together. Teams can set category sales, margin, and volume goals; decide which SKUs to retain or discontinue; forecast new products using attributes; and create store- and channel-specific forecasts. Scenario testing with digital-twin environments adds a way to compare assortment options, while open-to-buy tracking supports budget adjustment as plans change. Mobile assortment and planogram access extends collaboration to stores, rather than keeping planning limited to central teams.
Integration breadth is another important consideration. RELEX lists connections with SAP, Oracle, Microsoft Dynamics, Visma, IFS, AS400, Databricks, Snowflake, ERP, POS, WMS, HR, and MDM systems, along with REST APIs and file-based integrations. That makes the product suited to retailers with established enterprise systems and varied operational data. RELEX Solutions was founded in 2005 and is headquartered in Helsinki, Finland. The platform is a stronger choice for organizations that need coordinated assortment, forecasting, scenario, channel, and open-to-buy workflows than for teams seeking a narrowly focused or lightweight planning tool. Size and color planning is handled through the integrated Sizeo solution extension rather than as a standalone core assortment-planning feature.
RELEX Assortment Planning pros and cons
- Where it wins
- Plans assortments by store, cluster, channel, and category goals
- Combines forecasting, scenario testing, and open-to-buy workflows
- Connects with major ERP, POS, WMS, MDM, and data platforms
- Where it doesn't
- Pricing requires a contact-sales process
- Size and color planning uses the Sizeo solution extension
- Its enterprise breadth may exceed smaller retailers' needs
RELEX Assortment Planning fact sheet, pricing and score →
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