Context switching, defined.
Switching between multiple customers requires, by definition, context switching.
Context switching is the ‘movement between two unrelated tasks.’
Movement between two unrelated tasks is defined as a set of more than one ’todo list items that crosses between functional domains'.
Todo-list items that cross between functional domains are effectively two separate todo-list items that are between two customers, two distinctly different IT technologies, two different tool-sets, or some combination thereof.