SAP table CKMLHD has 2 primary key fields being MANDT,KALNR.
If you're only analyzing data from a single SAP instance you may omit field MANT in your relationships as it will we the same across the entire dataset. On the other hand, if you're combining data from multiple SAP instances you need to take MANDT into account.
Field
Description
Data Type
Length
Decimals
Checktable
Data Element
MANDT
Client
CLNT
3
0
MANDT
KALNR
Cost Estimate Number for Cost Est. w/o Qty Structure
NUMC
12
0
CK_KALNR
MLAST
Material Price Determination: Control
CHAR
1
0
CK_ML_ABST
2
Transaction-Based
3
Single-/Multilevel
XABRECH
Movements Have Occurred Since the Last Price Determination