Guides
Warehouse guides
Procedures and criteria to control inventory, organize picking and decide on RFID, written by the team that builds Chainlink WMS.
- Articles
- 16
Reviewed October 29, 2026 by the Business in a Wave team
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What is a WMS (warehouse management system)
Definition, the processes it controls, how it differs from an ERP and signs that a warehouse needs one.
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How to control warehouse inventory
Seven controls, from a code for each location to approved adjustments, and when to leave the spreadsheet.
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Inventory discrepancies: common causes and how to prevent them
Common causes of shortages and overages, how each one is detected and the control that prevents it.
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Order picking methods in a warehouse
Discrete, zone, batch and wave picking: how each method works and when it is the right choice.
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RFID vs. barcode: differences for a warehouse
Differences in reading, cost and equipment, and the cases where each technology or both are the right choice.
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Physical inventory with RFID, step by step
Preparation, tagging, reading by zone, reconciliation and adjustments, step by step.
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The cost of implementing RFID in a warehouse: components and how to estimate it
What makes up the cost, what each part depends on and what to request in a quote.
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Cloud WMS or on-premise server: how to choose
Initial cost, maintenance, updates, security and data residency for each option.
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Cycle counting: how to implement it step by step
ABC analysis, frequency by class, daily workload and what to do with each discrepancy.
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Physical inventory count: how to plan and run it in a warehouse
Two weeks of preparation, cutoff, count by location, second count and the file for your accountant.
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Warehouse KPIs: which ones to measure and how to calculate them
Nine indicators with their formula, what each one reveals and how to build a dashboard that is reviewed.
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Lot traceability in the warehouse: records and product recalls
What to record at each step, capture with GS1-128, NOM-251 in Mexico and how to run a mock recall.
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FIFO vs. FEFO in the warehouse: differences and how to choose the outbound rule
When they produce different results, which rule suits each product and what the warehouse needs to apply it.
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Warehouse location naming: coding conventions and labels
Zone, aisle, rack and level structure, naming rules and how to design the location label.
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How to integrate a WMS with your ERP: what is exchanged and how
Master data, documents and confirmations; connector, API or files, and what fails most often in an integration.
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How to choose a WMS: criteria, questions and a checklist
Requirements, ten criteria, three-year total cost and the warning signs in a proposal.
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