{"id":4366,"date":"2025-08-20T17:00:19","date_gmt":"2025-08-20T15:00:19","guid":{"rendered":"https:\/\/www.kanbanrocket.com\/?p=4366"},"modified":"2025-08-20T17:01:24","modified_gmt":"2025-08-20T15:01:24","slug":"when-not-to-use-kanban-mistakes","status":"publish","type":"post","link":"https:\/\/www.kanbanrocket.com\/en\/when-not-to-use-kanban-mistakes\/","title":{"rendered":"When NOT to Use Kanban: Common Mistakes to Avoid"},"content":{"rendered":"

Kanban<\/strong> is a powerful tool to manage materials using pull logic<\/strong>, improving both the efficiency<\/strong> and responsiveness<\/strong> of the supply chain.
\nHowever, it is not a universal solution<\/strong>. Its application must be carefully evaluated, because there are contexts where Kanban does not work\u2014or can even make the situation worse.<\/p>\n

In this article, we analyze the main mistakes companies make<\/strong> when they decide to apply Kanban without the necessary preliminary analysis<\/strong> or without proper system design<\/strong>.<\/p>\n

    \n
  1. \n

    Applying Kanban Without Involving the Supplier<\/strong><\/h3>\n<\/li>\n<\/ol>\n

    One of the most common mistakes is to implement a purchase Kanban<\/strong> without informing the supplier.<\/p>\n

    The result?<\/strong>
    \nThe card is released, but the supplier is unaware of the new method and continues to work with standard orders or on-demand requests.<\/p>\n

    This happens because of the absence of:<\/p>\n

      \n
    • Formal agreements<\/strong> (e.g., open orders or framework contracts)<\/li>\n
    • Supply specifications<\/strong> with management rules<\/li>\n
    • Material labeling<\/strong> according to Kanban logic<\/li>\n
    • Kanban identifier<\/strong> included in the delivery note (DDT)<\/li>\n<\/ul>\n

      Without structured collaboration, the Kanban flow will naturally be ignored or bypassed<\/strong>, causing stockouts<\/strong> and urgent situations<\/strong>, since the supplier is not in a position to organize its processes (production capacity and materials).<\/p>\n

        \n
      1. \n

        Using Kanban with Erratic or Seasonal Consumption<\/strong><\/h3>\n<\/li>\n<\/ol>\n

        Kanban works well in contexts with stable, repetitive consumption<\/strong>.<\/p>\n

        When consumption is strongly affected by peaks, variable trends, or seasonality<\/strong>, the system often collapses:<\/p>\n

          \n
        • During peaks<\/strong> \u2192 sizing becomes insufficient \u2192 stockouts<\/strong><\/li>\n
        • During declines<\/strong> \u2192 inventory increases \u2192 waste<\/strong> and tied-up capital<\/strong><\/li>\n<\/ul>\n
            \n
          1. \n

            Oversizing Cards \u201cOut of Fear\u201d<\/strong><\/h3>\n<\/li>\n<\/ol>\n

            Many companies, for \u201csafety,\u201d set inflated stock levels<\/strong> when launching the system.<\/p>\n

            The result is an oversized Kanban<\/strong> that:<\/p>\n

              \n
            • Slows down<\/strong> warehouse turnover<\/li>\n
            • Increases<\/strong> occupied space<\/li>\n
            • Locks in capital<\/strong> unnecessarily<\/li>\n<\/ul>\n

              Kanban sizing should never be improvised: it must be calculated scientifically<\/strong> on a statistical basis<\/strong> and updated over time.<\/p>\n

                \n
              1. \n

                Applying Kanban Rigidly and Uniformly<\/strong><\/h3>\n<\/li>\n<\/ol>\n

                Another common mistake is to apply the same \u201cone-size-fits-all Kanban rule\u201d<\/strong> to all items.<\/p>\n

                Each code, however, has its own logistical and production characteristics<\/strong>.<\/p>\n

                Example:<\/strong>
                \nIf a code requires sheet metal cutting operations<\/strong>, the card quantity must be adjusted based on sheet optimization (nesting)<\/strong>, not only on the statistical daily consumption<\/strong>.<\/p>\n

                  \n
                1. \n

                  Replacing MRP with Kanban Without Criteria<\/strong><\/h3>\n<\/li>\n<\/ol>\n

                  A serious mistake is to believe that MRP<\/strong> can be completely replaced with Kanban without first carrying out the necessary analysis and decisions<\/strong>.<\/p>\n

                  The two systems are not competitors but complementary<\/strong>.<\/p>\n

                  Kanban should only be applied to materials that:<\/p>\n

                    \n
                  • Have constant consumption<\/strong><\/li>\n
                  • Have stable lead times<\/strong><\/li>\n
                  • Are suitable for pull management<\/strong><\/li>\n<\/ul>\n

                    For all others (e.g., items with irregular demand<\/strong>, spot purchases<\/strong>, etc.), MRP<\/strong> or push logic<\/strong> is still more appropriate.<\/p>\n

                      \n
                    1. \n

                      Leaving the Kanban System Without Maintenance<\/strong><\/h3>\n<\/li>\n<\/ol>\n

                      A Kanban that is properly sized today may no longer be valid in a few months.<\/p>\n

                      Why? Conditions change:<\/strong><\/p>\n

                        \n
                      • The production plan<\/strong> changes<\/li>\n
                      • Suppliers<\/strong> or lead times<\/strong> change<\/li>\n
                      • Demand<\/strong> changes<\/li>\n<\/ul>\n

                        If the system is not maintained with appropriate tools<\/strong> (e.g., automatic update proposals as in KanbanRocket<\/strong>), companies risk:<\/p>\n

                          \n
                        • Understock<\/strong> for growing items<\/li>\n
                        • Overstock<\/strong> for declining items<\/li>\n
                        • Total loss of efficiency<\/strong><\/li>\n<\/ul>\n
                            \n
                          1. \n

                            Cultural Resistance (Rare, But Still Present)<\/strong><\/h3>\n<\/li>\n<\/ol>\n

                            Some operators or suppliers, unfamiliar with the pull method<\/strong>, tend to ignore or bypass the Kanban system:<\/p>\n

                              \n
                            • They replenish \u201cby eye\u201d<\/strong><\/li>\n
                            • They withdraw without releasing cards<\/strong><\/li>\n
                            • They ship goods<\/strong> without respecting the per-container quantities<\/strong><\/li>\n<\/ul>\n

                              Today this is increasingly rare, but in less mature contexts<\/strong>, it is still a risk.<\/p>\n

                              Conclusion<\/strong><\/h3>\n

                              Kanban is an effective tool<\/strong>, but only if it is properly and consciously designed<\/strong>.<\/p>\n

                              Before introducing it, it is essential to:<\/p>\n

                                \n
                              • Classify materials<\/strong> (e.g., with an ABC-RRS analysis<\/strong>)<\/li>\n
                              • Verify operational feasibility<\/strong><\/li>\n
                              • Involve all stakeholders<\/strong> (customers, suppliers, operators)<\/li>\n
                              • Design the system scientifically<\/strong><\/li>\n
                              • Ensure continuous maintenance<\/strong><\/li>\n<\/ul>\n

                                \ud83d\udc49 An improvised Kanban will not work<\/strong>.
                                \nA well-designed Kanban<\/strong> is a powerful lever<\/strong> to eliminate emergencies, reduce inventory, and streamline flows.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                Kanban is a powerful tool to manage materials using pull logic, improving both the efficiency and responsiveness of the supply chain. However, it is not a universal solution. Its application must be carefully evaluated, because there are contexts where Kanban does not work\u2014or can even make the situation worse. In this article, we analyze the […]<\/p>\n","protected":false},"author":5,"featured_media":4193,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[52,84],"tags":[],"yoast_head":"\nWhen NOT to Use Kanban: Common Mistakes to Avoid - KanbanRocket<\/title>\n<meta name=\"description\" content=\"Discover when Kanban doesn\u2019t work and the most common mistakes to avoid. A practical guide to applying pull logic correctly in the supply chain.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kanbanrocket.com\/en\/when-not-to-use-kanban-mistakes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When NOT to Use Kanban: Common Mistakes to Avoid - KanbanRocket\" \/>\n<meta property=\"og:description\" content=\"Discover when Kanban doesn\u2019t work and the most common mistakes to avoid. 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