Two types of org model and their impact
There're two types of org model(also called backend integration version) in CRM, standard and enhanced.
With standard, you can only assign single org unit to its parent org unit, eg. You can only assign one single sales office to one sales organization, also one single sales group to one sales office. With enhanced, you can assign multiple sales offices to one sales organization, and also multiple sales groups to one sales organization.
You can check this in system table(T77S0)
But you have to note that, "STANDARD" or "ENHANCED" in this table for CRM MODEL field is only informative, it simply tells you the current status of the org model, in other words it's display only, you can't change the org model(backend integration version) simply by manually changing this field in the table. To change the model from standard to enhanced version, you need to run report CRM_ORGMAN_SWITCH_TO_ENH_MODEL in SE38.
The impact on PPOMA_CRM view:
In case of standard(simple) org model, you maintain distribution channel and division in subtab "Attributes" for Attribute Maintainance Scenario "Sales"
In case of enhanced, you won't find them in Attributes tab, so you can't maintain them there, instead you need to maintain them in "Function" tab.
In case of enhanced, you maintain the division and distribution channel in subtab of "Function" like "Sales organization" , "Sales office" or "Sales group" while in standard model, there're no such tabs at all, in standard model, you should maintain them in "Attributes" tab
See below about what a standard model looks like in "Function" tab
The impact on DB tables:
With Enhanced mode, the attributes will be store in DB table HRV5551A, no longer in HRV1222A.
eg. there's a org unit 51000110, which is a sales group, mapping to sales group 001 in R3.
this is how table HRV5551A looks for object ID 51000110
all the sales area data can be found in this table.