The T685 table in SAP stores information about condition types used in pricing and other applications, such as discounts, surcharges, taxes, and freight. It defines the attributes and behavior of each condition type, including calculation rules, access sequences, and application areas (e.g., Sales and Distribution or Purchasing). This table plays a crucial role in configuring pricing procedures and determining how conditions are applied in business transactions.
SAP table T685 has 4 primary key fields being MANDT,KVEWE,KAPPL,KSCHL.
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.