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5 Common Assortment Planning & Optimization Challenges Retailers Face

09/23/2026 | 5 Min Read
5 Common Assortment Planning & Optimization Challenges Retailers Face

Assortment optimization is the art of predicting future sales. To meet consumer demands across all sales channels, multiple teams from planning to design to sourcing need timely, reliable data for informed decision-making.

However, trying to figure out what consumers are most likely to buy and how to get the products they want in front of them when they are ready to buy is no simple task.

Let’s explore five common assortment optimization challenges that many retailers struggle with: 

1. Reliable Data is the Foundation of Assortment Optimization

Assortment optimization heavily relies on accurate and reliable data, including market insights, consumer trends and historical sales data. Without access to this crucial information, retailers make decisions in the dark and are forced into a reactive, firefighting approach instead of proactive planning and execution. Obtaining and analyzing reliable data is essential for making informed decisions that align with market demands and consumer preferences.

When teams rely on disconnected spreadsheets, outdated reports or incomplete data, it becomes difficult to understand which products are driving performance and where opportunities exist. Retailers may overestimate demand for certain products, overlook emerging trends or carry too much inventory in underperforming categories. These gaps can lead to missed sales opportunities, excess inventory and markdowns that put pressure on margins.

A centralized, data-driven approach to assortment optimization gives retailers greater visibility into performance and demand across products, categories, channels and locations. By bringing relevant data together and using it to inform assortment decisions, teams can identify opportunities earlier, respond to changing consumer preferences and create assortments that are better aligned with demand. This enables more proactive planning while supporting profitable, customer-focused assortment strategies.

2. Having to Orchestrate Countless Data Points

Assortment optimization involves bringing together hundreds or even thousands of data points, from sales figures to visual product images to financial projections. Planners, merchandisers and buyers need to work together, accessing and understanding this data to create financially sound plans. 

However, managing vast amounts of data and ensuring that all teams can access it in real time can be a daunting challenge. Failing to orchestrate these data points efficiently leads to incomplete information and decision-making based on gut instinct rather than data-driven insights. 

3. Information Living in Offline Systems

Being able to view and assess financial data as well as creative elements and images is crucial for optimal assortment decisions. Many retailers face the problem of having data scattered across various offline systems in different formats. 

Global planning, range planning, merchandising, buying, design and product development teams end up creating unique offline systems to complete their piece of the puzzle that contributes to assortment optimization decisions. Significant time and effort is expended trying to piece together the necessary datasets, resulting in delays and outdated information. Using outdated or irrelevant data can lead to poor decision-making and missed opportunities in the market. 

4. Collaboration and Feedback Across Teams

Cross-functional teams often span different locations and time zones. Effectively collaborating and providing feedback becomes a significant challenge when communication is scattered across various platforms, including email, virtual meetings, chats and project management tools. Important feedback can get lost in the chaos, hindering the assortment and merchandise planning process and resulting in less efficient decision-making.

When teams lack a centralized way to communicate and share updates, it can be difficult to maintain visibility into the latest assortment decisions, product changes and stakeholder feedback. Team members may work from outdated information or spend valuable time searching across different channels to understand what has already been discussed and approved. This can create unnecessary delays, misalignment between teams and bottlenecks throughout the planning process.

A more connected approach to collaboration brings stakeholders together around shared assortment and merchandise planning data, making it easier to communicate, provide feedback and keep decisions moving forward. By giving teams greater visibility into changes and creating a centralized source of information, retailers can reduce communication gaps, streamline collaboration and make more informed assortment decisions. This enables teams across merchandising, planning, buying and other functions to work together more efficiently throughout the planning cycle.

5. Embracing Speed and Agility

In the fast-paced world of retail, agility and speed are essential to capitalize on emerging trends and seize market opportunities. However, shifting toward a more agile retail planning process can be challenging. Planners and merchants need to respond quickly to changing consumer demand while balancing sales targets, inventory levels, budgets and assortment strategies. When planning processes are slow or overly manual, retailers can struggle to adapt assortments quickly enough to capture emerging opportunities.

Organizational culture and mindset often need to evolve to support more agile retail planning. When teams rely on spreadsheets, disconnected data and lengthy approval processes, making changes to product assortments, budgets or plans can become time-consuming and difficult to coordinate. Providing user-friendly retail planning tools and streamlined workflows enables teams to evaluate opportunities, adjust plans and collaborate more efficiently, helping reduce the delays that can limit responsiveness.

By embedding agility into the retail planning process, retailers can make faster, more informed decisions as market conditions change. Connected planning data and collaborative workflows give merchants and planners greater visibility into performance, demand and assortment opportunities, allowing them to adjust plans with greater confidence. This creates a more responsive planning process that enables retailers to align assortments with customer demand, optimize inventory and act on market opportunities throughout the season.

Turn Planning Data into Profitable Assortments with Centric Planning and Pricing

Reliable data, connected collaboration and informed decision-making are essential to building profitable assortments that align with real consumer demand. By connecting financial planning, assortment strategy, pricing and inventory decisions, retailers can move beyond disconnected processes and make faster, more informed decisions throughout the product lifecycle.

Centric Planning & Pricing brings these capabilities together with AI-powered demand forecasting, real-time market insights and connected planning workflows. Retailers can build demand-led assortments, optimize pricing and align inventory with demand while gaining greater visibility into the factors that influence sales, margins and sell-through.

With the right retail planning technology, brands and retailers can turn data into more predictable, profitable decisions. Centric Planning & Pricing enables teams to plan smarter, respond to changing demand and bring the right products to market at the right prices, creating assortments that support both customer expectations and commercial goals.

Overcome assortment planning and optimization challenges with Centric Planning and Pricing.

Book a demo today!

Common Assortment Planning & Optimization Challenges