The core activities of process design take a few days.
The prerequisite for the actual design activities is a very good understanding of customer needs and interface requirements from other business areas.
It usually takes a few weeks to record, understand and harmonize these requirements.
The process design itself is followed by testing and optimization of the developed process, as well as roll-out planning and transfer to the organization.
Depending on the complexity of the organization, these activities take anywhere from a few weeks to several months.