is it better to have related things in same module or should I create a seperate module for them?

[native jungle]

In the example in image.

orders meaning customer orders from webshop,
sales orders means orders coming from 3rd party api,
orderpick means the process of picking orders from warehouse,

in this case when it is a good decision to have them seperate modules or having them under same modules is more efficient?

[opal sequoia]

the way file structure is recontended is to keep everything grouped
demonstrated by scott in this blog post

i would say:
yes they are all part of order but they aren't alike and operate differently
i think creating 3 sub folders in this order folder would be the best solution
still grouped together as order but distance is kept at for the different methods