Condition technique is a configuration technique in SAP used to configure complex business rules, such as pricing. It consists of several key components, including a field catalog, condition tables, an access sequence, condition types, pricing procedures, and pricing procedure determination. Condition tables contain business rules and are accessed in the order specified by the access sequence. Condition types represent logical components like taxes or discounts. Pricing procedures combine condition types and are assigned to documents like sales orders. Overall, condition technique provides a rules engine for flexibly configuring diverse and changing business rules through its various components.