SAP table T171 (Customers: Sales Districts)

SAP table T171 has 2 primary key fields being MANDT,BZIRK.

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
BZIRK Sales District CHAR 6 0 BZIRK