When I create a material in ERP and download to CRM, corresponding data is generated for settype CRMM_PR_SALESA.
It contains the following data downloaded from ERP:
PROCESS_UNIT
Unit of Measure in Which the Product Is Sold
In ERP, it is stored in table MVKE-VRKME.
Maintained in ERP via tcode MM02:
In CRM WebUI, it is displayed in this field.
CASH_DISC
Specifies Whether a Cash Discount Can Be Given for the Prod.
Checkbox maintained in ERP:
table field: MVKE-SKTOF
In CRM:
MIN_ORDER
A minimum order quantity in base units of measure, which is the minimum quantity a customer can specify during order entry.
table field: MVKE-AUMNG. In my example, in CRM it is maintained as 3:
In CRM, it is 0.25 BT
Because in ERP, it is maintained as 1 BT = 12 EA in ERP.
S_ITEM_CAT_GROUP
Distribution-Chain-Dependent Item Category Group. It could be different from standard item category group maintained in material level.
In CRM, this item category group is displayed:
CRMT_DELY_UNIT
Delivery quantity together with unit:
In CRM:
LOC_BUPA
Delivering Location
UNSALE_NOT_VAR
You can maintain the sales unit for each material and sales organization/distribution channel. The sales unit is proposed in Sales and Distribution (SD) documents such as sales orders. If a variable sales unit is not allowed, the unit specified in documents may not differ from that in the master record.
In ERP:
In CRM:
PRICE_PRODUCT
used in pricing scenario: Material master record that the system uses as a reference for pricing purposes.
In ERP:

In CRM:
The detail mapping logic is implemented in this subroutine:
PROCESS_UNIT