SAP Table
PURG Requirement Urgencies
SAP table PURG has 2 primary key fields being MANDT,PRIO_URG.
If you are only analysing data from a single SAP instance you may omit field MANDT in your relationships as it will be the same across the entire dataset. On the other hand, if you are combining data from multiple SAP instances you need to take MANDT into account.