> ## Documentation Index > Fetch the complete documentation index at: https://docs.arcuserp.com/llms.txt > Use this file to discover all available pages before exploring further. # Supply & Demand > Use Supply & Demand to find replenishment pressure, projected stockouts, reorder timing, and demand signals for stocked products. ## What Supply & Demand Is For Supply & Demand is a planning view. It helps inventory and purchasing teams decide which stocked products need attention first and what replenishment signals are driving that urgency. * Find products that are out, short, or close to stockout. * Review available stock against recent demand. * See whether MRP demand is adding pressure. * Review suggested reorder quantity. * Search by product name or part number. * Move into purchasing when replenishment is needed. Supply and Demand page showing search, sorted by most urgent first badge, and planning table columns for available stock, demand, stockout days, reorder date, safety stock, reorder quantity, surplus, and trend ## Read the Table * **Product**: the stocked product and part number. * **Available**: stock available to promise after commitments. * **Avg Daily Demand**: recent blended daily demand signal. * **MRP Demand**: additional dependent demand from planning activity. * **Days to Stockout**: estimated days before available stock runs out. * **Reorder Date**: when replenishment should start to avoid stockout pressure. * **Safety Stock**: unit buffer you want to keep on hand. * **Reorder Qty**: suggested replenishment quantity. * **Other Locations**: appears when a specific warehouse is selected in the header and shows stock available at other warehouses. * **Surplus**: expected stock position after demand, safety stock, and open purchase supply. * **Trend**: compact demand pattern when enough history exists. **The table is already prioritized** Rows are sorted by urgency. Start at the top, then use search when you need a specific product. ## Understand Stockout Signals * **Stockout: N short**: the product is already at or below zero on hand. * **Under 7 days**: urgent stockout risk. * **Under 30 days**: review soon and plan replenishment. * **No demand**: Arcus does not have enough demand history to estimate a useful stockout date. * **Immediate**: replenishment should start now because the row is already short or inside the lead-time window. * **Overdue**: the suggested reorder date has already passed. **No demand does not mean no importance** A no-demand row may still matter if the product is new, seasonal, project-driven, or used as a kit component. Review product context before ignoring it. Supply and Demand planning table focused on stockout, reorder date, safety stock, reorder quantity, surplus, and trend columns ## How Reorder Quantity Is Calculated Reorder Qty is the suggested number of units to buy after considering lead-time demand, safety stock, available stock, and stock already on purchase orders. * **Lead-time demand**: expected demand during the vendor replenishment window. * **Safety stock**: a unit buffer, not a number of days. * **Available stock**: stock currently available after commitments. * **On purchase order**: open purchase supply already on the way. **Do not double-order without checking open POs** Reorder Qty already considers stock on purchase order. Before creating a new PO, review open purchase orders and expected receipt dates. ## Use Location Scope Carefully When the header is set to a specific warehouse, Supply & Demand shows that warehouse's planning pressure and adds **Other Locations** when stock exists elsewhere. Use that column before buying. * If **Other Locations** has stock, consider a transfer before creating a vendor PO. * If **Other Locations** is blank or zero, replenishment probably has to come from receiving or purchasing. * If the page looks empty under a warehouse filter, switch to all locations before concluding the product has no planning data. ## Use Search 1. Open **Inventory**. 2. Open **Supply & Demand**. 3. Use the search field to enter a product name or part number. 4. Review the planning columns for that product. 5. Open the product, Reorder Report, or Purchase Orders when follow-up is needed. ## When to Take Action * **Immediate or overdue reorder date**: review vendor supply and create or update a PO. * **Negative surplus**: expected demand and safety stock exceed current supply. * **High MRP demand**: check manufacturing or kit-related demand before buying. * **Available is zero or negative**: check fulfillment pressure and expected receiving. * **No trend**: review product history manually before relying on automation. ## Common Blocks * **No data appears**: receive stock, fulfill orders, or clear search filters. * **No demand appears**: the product may not have enough demand history yet. * **Reorder Qty is blank**: current supply may already cover lead-time demand and safety stock. * **Surplus is negative**: review open demand and purchasing supply. * **Trend is blank**: there may not be enough history for a useful sparkline. * **Rows look stale**: refresh after recent receiving, fulfillment, or adjustment work completes. ## Related Articles Monitor stock health, location balances, low-stock alerts, and inventory value warnings. Audit stock movement history, movement types, supply and demand rows, and FIFO layer detail. Find low-stock products, review vendor grouping, and generate draft purchase orders from reorder settings. Create POs, add vendor items, receive inventory, and handle approval, cancellation, billing, and close-short blocks. Track stock, locations, reorder points, and inventory movement history. Operate the station view for picking, packing, and shipping.