Lessons from a time when everything was done “manually.”
At the beginning of my career, I worked in a manufacturing company that did not have an adequately implemented ERP system. During that period, almost all activities related to planning, procurement, and material consumption tracking were performed manually—through Excel spreadsheets, paper records, and individual calculations.
At the time, I did not see this as an advantage. However, with distance and experience, I now realize that this environment strongly shaped my professional way of thinking.
What Daily Work Looked Like
Production and procurement planning relied on:
- manual calculations of standards and material consumption
- historical data that was not always accurate or up to date
- multiple parallel Excel files, without clear standardization
- limited real-time visibility of inventory levels
Every change in the plan required recalculation, verification, and alignment across multiple stakeholders. Errors were inevitable, and the consequences often appeared as excess inventory or production delays.
Challenges of Working Without a System
The biggest challenge was not the workload itself, but the lack of reliable and consolidated information. Without a centralized system:
- there was no single source of truth
- planning was mostly reactive
- decisions were based on experience and estimation rather than clear indicators
For someone at the beginning of their career, this meant learning the fundamentals quickly—often through mistakes and daily challenges.
A Sentence I Still Remember
From that period, one sentence from my mentor has stayed with me:
“Once you learn planning through manual calculations, no system will ever be difficult for you later.”
At the time, I did not fully understand the weight of those words. Later, working in environments with implemented ERP systems, I realized just how true they were.
What I Learned from That Experience
Working without an ERP system taught me:
- to understand the processes behind the numbers, not just the results shown in a system
- how critical accurate input data is for supply chain stability
- why systems themselves do not solve problems—they only make them more visible
When you understand planning logic from the ground up, systems become tools rather than obstacles.
Conclusion
Although working without an ERP system was demanding and often inefficient, that experience laid a strong foundation for my professional development. Understanding processes at a “manual” level later allowed me to view ERP solutions realistically, with a clear focus on their practical value and limitations.