Odoo rules are used in the powerful rounting system for Odoo inside Routes using operations. Complex at first, but it is quite well explained in Odoo's documentation to a certain extent, because when activating Developer mode, there are Propagation settings for which it is difficult to find precise information.
Like to clarify the possibilities, behaviors, and needs of:
Propagation of Procurement Group?
Propagation of carrier?
Warehouse to Propagate?
As well as the implications of entering a "Partner Address" in the options of a "Pull from" action.
Thanks