Morning production meeting in an engineering plant. The schedule is locked, machines are allocated and teams are aligned to what needs to be produced.

By 11AM, it starts to fall apart.

A critical component is not physically traceable on the shop floor, although it shows available from ERP data. Material is searched across bins. Calls start between stores, production, planning etc. Line stops or switches. New plan is made on the fly. And the cycle goes on. By the end of the day, more effort has gone into adjusting the plan than executing it. Output at the end of the day looks very different than planned.

In response, many companies try to fix this by investing in better planning tools, advanced scheduling software or more experienced planners. But the core issue remains untouched.

In most cases, the real problem sits quietly in the background: 𝘐𝘯𝘷𝘦𝘯𝘵𝘰𝘳𝘺 𝘢𝘤𝘤𝘶𝘳𝘢𝘤𝘺 𝘢𝘯𝘥 𝘥𝘦𝘭𝘢𝘺𝘦𝘥 𝘴𝘺𝘴𝘵𝘦𝘮 𝘶𝘱𝘥𝘢𝘵𝘦𝘴. Material may have been issued, consumed or moved during the day, but the ERP reflects it only at the end of the shift/day. That gap between physical and digital movement creates a false picture for planning.

So, the next day’s schedule is again built on data that is already outdated. In engineering setups with multi-level BOMs and interdependent processes, even a small mismatch gets amplified across the line. This is not a scheduling issue. It is a stock accuracy and data timing issue.

As long as physical stock and system data are not aligned in near real-time, production planning will continue to remain reactive; no matter how sophisticated the planning method or system is.