There are many ways to document a Process Map of transactional processes, however I believe that photos and videos represent more clearly the reality.
These two videos are a good example of how to detect areas of opportunity and how to solve them.
The distinction between value-added activities and non-value-added activities can be clearly seen.
And it is an example of how IT can help us with a practical solution.
I hope to help you in your next kaizen event.