{"id":6451,"date":"2026-09-22T14:13:39","date_gmt":"2026-09-22T12:13:39","guid":{"rendered":"https:\/\/www.stockm.eu\/?p=6451"},"modified":"2026-09-22T14:43:28","modified_gmt":"2026-09-22T12:43:28","slug":"excel-gut-feeling-vs-toc-inventory-management","status":"publish","type":"post","link":"https:\/\/www.stockm.eu\/en\/excel-gut-feeling-vs-toc-inventory-management\/","title":{"rendered":"How to move from \u201cExcel + gut feeling\u201d to TOC inventory management"},"content":{"rendered":"\n
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For many wholesalers, distributors, and manufacturers, inventory planning<\/strong> sits somewhere between Excel files, ERP exports, supplier emails, and the experience of a few key people.<\/p>\n\n\n\n

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\"Gut<\/figure>\n<\/div>\n\n\n\n
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This makes a difference. The person buying or planning for a line of products that has been in the market for years will have an understanding of the suppliers, customers, seasonality, and common issues that goes beyond anything in a spreadsheet. Their insight is particularly important during unexpected changes in demand, an anomaly from a supplier, or in a situation requiring a business decision with an important customer.<\/p>\n<\/div>\n<\/div>\n\n\n\n

TOC inventory management<\/strong> provides a framework for the use of such insight. Through the transformation of consumption patterns, lead times, and business considerations, they can see more clearly where their insight should be applied.<\/p>\n\n\n\n

This shift is a very practical move in how the organization manages its buying, expediting, reducing, and tolerance. Rather than ask people to carry the full load of the calculation and prioritization, the organization builds a repeatable process around their insights.<\/p>\n\n\n\n

This is how companies move from a familiar situation – high total inventory, shortages of key products, urgent requests, and large reports – to a more stable balance between availability, working capital, and planner workload.<\/p>\n\n\n\n

Why \u201cExcel + gut feeling\u201d becomes difficult to scale<\/h2>\n\n\n\n

Excel is valuable for analysis, scenario work, and checking assumptions. Planner experience is valuable for interpreting unusual events and making commercial decisions. Together, they can work very well in a limited product range or a stable environment.<\/p>\n\n\n\n

As the number of SKUs, locations, suppliers, and purchasing cycles grows, teams need an additional shared execution process. Hundreds or thousands of SKU-location combinations create more decisions than a planner can consistently review one by one. A buffer inventory management system<\/a><\/strong> provides a structured, current view of stock, open orders, expected supply, and priorities.<\/p>\n\n\n\n

1. A shared view of current conditions<\/h3>\n\n\n\n

Spreadsheet-based planning often involves several reports, each serving a useful purpose: sales information, stock reports, supplier updates, purchase-order files, and forecast analyses. The challenge is that these sources may be updated at different times and interpreted differently by different people.<\/p>\n\n\n\n

TOC inventory management helps bring the related inputs under one decision frame. Current inventory levels, actual usage, open orders, order placement, and buffers can all be considered at the same time. It gives everyone in purchasing, sales, operations, and finance a common point of reference for any discussion.<\/p>\n\n\n\n

2. Parameters that are current with reality<\/h3>\n\n\n\n

Minimums, maximums, and safety stocks can serve as good initial parameters. Their effectiveness would be greatest if they would take into account present demand, lead time, product life cycle, and customer behaviour, which change over time.<\/p>\n\n\n\n

Buffers are the parameters for active management in TOC. When an item becomes frequently stressed, the team can consider why this happens \u2013 because of increasing demand, changing lead time, or because the buffer should be strengthened. If the item always exceeds the target level, the team can decrease the buffer, change replenishment, or initiate a gradual sell-down.<\/p>\n\n\n\n

In the end, there is a continuous loop of feedback: operating behaviour determines the inventory parameters.<\/p>\n\n\n\n

3. Priorities that are visible to everyone<\/h3>\n\n\n\n

Experienced planners are skilled at recognising urgency. TOC gives them a consistent way to compare urgency across the whole portfolio.<\/p>\n\n\n\n

A traditional planning day may begin with a long list: items below minimum, overdue purchase orders, forecast exceptions, and requests from sales. Each item may be relevant, but the list does not always show which action will have the greatest effect on service or working capital.<\/p>\n\n\n\n

TOC uses buffer status and business impact to rank actions. Items that require attention rise to the top, while healthy items require less daily review. This gives planners more time for supplier discussions, customer commitments, substitutions, promotions, assortment decisions, and risk management.<\/p>\n\n\n\n

4. Knowledge that can be shared across the business<\/h3>\n\n\n\n

Knowledge about critical items, supplier reliability, customer behaviour, and possible substitutions is one of the company\u2019s most valuable assets. A TOC process makes this knowledge easier to turn into visible policies and routines.<\/p>\n\n\n\n

For example, the team can explicitly define:<\/p>\n\n\n\n