Business process mapping, a part of Business Process Management (BPM), is a framework used to create visual representations of work processes. Business process maps show the relationship between the steps and inputs to produce an end-product or service, such as when a product goes through packaging or when an employee’s leave is approved. This process of documentation is concerned with what a business does, why it does what it does, what the standard is for success, who is responsible, and when and where different steps will occur.
It is a great technique for the team to understand the business, and to present our knowledge to the stakeholders.
Here's a detailed guide to Business Process Mapping: Essential Guide to Business Process Mapping
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References:
https://www.datexcorp.com/inventory-management-tips-optimizing-your-warehouse/