Tariffs may dominate the headlines, but for retailers, they are only one part of a much bigger planning problem.
Costs are shifting. Demand is uneven. Supply chains remain exposed. Consumers are more price-sensitive. And every decision, from assortment depth to pricing, allocation, replenishment, and markdowns, now carries a sharper margin consequence.
The issue is not that retailers lack plans. Most have plenty of them.
The issue is that those plans are often too slow to keep pace with the market.
When tariffs or cost shocks hit, retailers need to answer critical questions quickly:
- Which categories, products, suppliers, or regions are most exposed?
- Can margin be protected through pricing, sourcing, assortment, or allocation changes?
- What happens to open-to-buy if landed costs increase?
- Where does inventory exposure become markdown risk?
- How will merchandising, supply chain, and finance agree on the right action?
In many organizations, those answers still require manual analysis, spreadsheet reconciliation, and disconnected conversations across teams. By the time the decision is aligned, the market may have already moved.
That is where margin risk builds.
Cost volatility is now a merchandising problem
Tariffs, inflation, supply disruption, and consumer value pressure are no longer issues that sit only with sourcing or finance. They directly affect merchandising decisions.
A tariff increase can change item economics. Cost inflation can pressure gross margin. Demand shifts can make previously sound buys look overexposed. A delayed shipment can affect availability, allocation, promotions, and markdown timing.
Raise prices and demand may soften. Absorb the cost and margin declines. Shift inventory and availability changes. Cut receipts and service levels may suffer. Delay action and markdown exposure grows.
Retailers that perform best will not be those with the most detailed plan at the start of the season. They will be those that can continuously evaluate trade-offs and act before cost pressure becomes margin damage.
Static planning cycles turn cost shocks into margin exposure
Traditional retail planning was built around periodic cycles: pre-season plans, monthly reviews, weekly adjustments, and post-season analysis.
That rhythm is no longer enough.
Coresight Research’s merchandise planning report, found that 64% of US retailers still face challenges executing Merchandise Financial Planning (MFP), even though MFP adoption is widespread. The report also found that retailers are left with 15% excess inventory on average after each selling period, pointing to a mismatch between assortment plans and shopper demand. (Coresight Research, 2026)
IDC’s Next-Generation Retail Planning 2026 InfoBrief identifies macro challenges, including inflation and tariffs, as a business challenge for 33% of retailers.
This is the planning gap tariffs expose.
When costs change midstream, the problem is not simply whether the forecast was accurate. The problem is whether teams can connect the impact across:
- Merchandise financial plans
- Allocation and replenishment
If each function is working from a different model, timeline, or version of the truth, the response slows down.
And in retail, slow decisions are expensive decisions.
The real issue is disconnected decisions
Retailers have invested heavily in planning. But many are still trying to manage volatility through functional processes that do not move together.
Coresight found that 50% of retailers cite lack of a unified platform connecting financial, product, and inventory decisions among their top MFP execution challenges. Another 49% cite lack of real-time data and insights, and 42% cite inability to swiftly respond to market shifts. (Coresight Research, 2026)
Those are not minor process issues. They are margin control issues.
If teams cannot see real-time cost, demand, inventory, and financial impact together, they cannot make the right trade-off fast enough.
That is why the next evolution of retail planning is not just better forecasting. It is continuous decision-making.
The Retail Industry Playbook explains this shift as a move from static, siloed planning to continuous, decision-centric planning, where every decision is modeled, evaluated, and aligned across the enterprise before execution. Download the playbook
What faster retail planning needs to look like
Tariffs and cost shocks create a chain reaction across the retail business. A cost increase does not stop at sourcing. It affects pricing, assortment depth, open-to-buy, allocation, replenishment, margin, and cash.
The Retail Industry Playbook gives retailers a practical model for managing that chain reaction through continuous planning. Instead of treating planning as a fixed cycle, retailers need to connect five activities continuously.
Cost changes, demand shifts, supplier updates, shipment delays, sell-through movement, and market signals need to be captured quickly. But detection alone is not enough. A signal has no value if it does not reach the people who need to act.
Teams need to know which categories, regions, suppliers, channels, price tiers, and inventory commitments are most exposed. Without connected planning context, teams may see the signal but miss the consequence.
Should the retailer adjust price, reduce intake, rebalance allocation, revise demand, shift promotion timing, or reset margin expectations? Each choice affects sales, margin, inventory, service, and cash differently.
Merchandising, supply chain, finance, pricing, and planning need to work from the same assumptions before action is taken. That requires one shared decision model, not disconnected planning handoffs.
A delayed OTB, allocation, or pricing decision can quickly become markdown exposure, inventory imbalance, or margin leakage.
IDC describes next-generation planning as a continuous model across Data → Planning → Optimize → Decisioning → Execution, with real-time data feeding back into each stage.
The same InfoBrief links next-generation planning to outcomes such as 10% to 25% increased inventory turnover and GMROI, 10% to 35% decreased stockouts, 3% to 10% increased forecast accuracy, 5% to 15% reduced carrying costs, 1% to 3% improved gross margins, and 5% to 15% fewer markdowns. (IDC, 2026)
AI needs to work inside the planning decision
AI is already present in merchandise planning, but the opportunity is not just more automation.
Coresight found that 96% of MFP solutions incorporate some form of AI, yet advanced use cases remain underutilized. Scenario planning is supported by only 54% of retailers, while 40% of retailers with AI capabilities in their MFP do not support customer personalization. (Coresight Research, 2026)
That gap matters in a tariff or cost shock environment.
A generic AI assistant can summarize a variance. A connected merchandising agent can help planners understand where the variance matters, why it happened, and what decision should come next.
The Board Merchandiser Agent is designed for that workflow. It works inside Board’s unified merchandising planning environment, where MFP, OTB, inventory, margin, and commercial context are already aligned. Explore the Agent
For example, the Agent can help a planner answer:
- Which categories are growing, stable, or declining?
- Where did last season’s plan miss?
- Which OTB lines need attention now?
- Is the issue caused by the plan, utilization, or both?
- Where could inventory risk turn into margin pressure?
In a volatile market, this is the difference between AI as reporting support and AI as decision support.
From planning insight to merchandising action
The Retail Industry Playbook explains why retailers need continuous planning. The Board Merchandiser Agent shows what that looks like in daily merchandising decisions.
The Agent helps planning teams move faster across two critical decision areas.
Merchandise Financial Planning (MFP)
MFP decisions shape the season before trading even starts. But category shifts, margin signals, and last year’s planning errors are often reviewed too late or too manually.
The Board Merchandiser Agent helps planners classify categories as growth, core, or decline; review plan accuracy across sales, margin, markdown, and ASP/ACP; and identify where forecast errors compounded or offset across the hierarchy.
For retailers facing tariffs or cost shocks, this matters because the cost impact may not appear evenly across the business. Some categories may remain resilient. Others may require pricing, intake, margin, or allocation intervention.
Open-to-Buy (OTB)
OTB risk rarely appears as one clean issue. It builds through coverage gaps, sales deviation, utilization pressure, and inventory exposure across regions, channels, and products.
The Board Merchandiser Agent helps teams review 13-week OTB performance against target coverage, prioritize planning lines requiring action, identify root causes across MFP error or OTB utilization, and flag frozen-period inventory risk with recommended intake reallocation.
For retailers facing cost volatility, this is critical. A landed cost increase can change OTB logic. A demand shift can change coverage needs. A delayed adjustment can create inventory imbalance or markdown exposure.
The Agent helps surface those risks earlier, so planners can move from investigation to action faster.
Margin protection starts before markdowns
Too often, retailers treat margin protection as an in-season or end-of-season response: adjust price, promote harder, rebalance stock, take markdowns, and explain the gap.
But by then, many margin outcomes have already been shaped.
They were shaped when the buy was committed. When the OTB position changed. When the cost increase was absorbed. When assortment depth was not adjusted. When allocation did not reflect new demand. When financial guardrails were not connected to merchandising action.
Coresight found that MFP software users reported an average 6% gross sales uplift, 1.1 percentage-point margin expansion, and 12% reduction in leftover inventory after a selling period. It also found that 65% of respondents cited improved financial performance as a benefit of MFP. (Coresight Research, 2026)
The lesson is clear: planning can create financial value. But the next step is making that planning faster, more connected, and more responsive when conditions shift.
That is why retailers need to move beyond static planning cycles.
Continuous planning is the new retail control system
Tariffs and cost shocks are not going away. Neither are demand volatility, supply disruption, price sensitivity, or margin pressure.
Retailers need a planning model that can keep moving.
A continuous planning approach connects signals, scenarios, decisions, execution, and financial impact. It helps retailers understand what is changing, what it means, what choices are available, and what those choices do to margin, inventory, cash, and customer outcomes.
Board’s Retail Industry Playbook introduces this as a retail operating model where signals are interpreted in context, decisions are modeled and evaluated, execution reflects aligned choices, and financial outcomes are understood before action.
For retail leaders, the goal is not to eliminate volatility. It is to stop volatility from becoming uncontrolled margin risk.
That requires three shifts:
- From static plans to continuous decisions
- From disconnected teams to shared planning context
- From AI as reporting support to AI as decision support
The retailers that make those shifts will be better positioned to protect margin, improve inventory productivity, reduce markdown exposure, and respond faster when the next shock hits.
Move faster before margin risk compounds
Tariffs and cost shocks will keep testing retail planning models.
The retailers that respond best will be those that can connect cost, demand, inventory, pricing, OTB, and financial impact before decisions become margin problems.
> Download the Retail Industry Playbook to learn how continuous planning helps retailers align merchandising, supply chain, and finance around faster, more confident decisions. Download the playbook
> Explore the Board Merchandiser Agent to see how AI-native merchandise planning helps teams surface OTB risk, understand root causes, review plan accuracy, and act inside one connected planning workflow. Explore the Agent
