Differentiating of pricing schema for each purchasing document type

Question

Dear colleagues,
This topic could be discussed before but I need to clarify some points.
We would like to differentiate pricing schema per purchasing document types (e.g. AA and ZZ). These purchasing documents are not like domestic and import types.
There some condition(s) where purchasing document type AA should not be able to maintain whereas ZZ should be able to.
In this case shall use one unique pricing schema for both purchasing document types if so how can I hide some conditions for document type AA or if I use separate pricing schema how can I set different pricing schemas for different purchasing document types because both document types have same purchasing organization, vendor etc. 
Regards
Metin

Answer 1

Hi,
Why to have two different schema groups! Is procurement process is completely different, so use to have!
(have thought of separate condition types for each Calculation Schema)
Based on Schema Group Of Vendor in the vendor master, the PO for vendor with respective Schema Group Of Vendor will populate the assigned condition typesu2019. Follow path:
SPRO->MM->Purchasing->Conditions->Define Price determination process ->Define Schema Determination
Under segment:
Determine Calculation Schema for Standard Purchase Orders
Here you can assign Schema Group Purchasing Organization, Schema Group of Vendor and Calculation Schema
Under segment:
Determine Schema for Stock Transport Orders
Here you can assign Schema Group Purchasing Organization, PO document type and Calculation Schema
Regards,
Biju K