Changing
Time-Dependent Conditions Collectively (Condition Index) 
Use
As of Release 4.6C, you can collectively change the time-dependent conditions using a condition index.
You can collectively change time-dependent conditions and their validity periods, administrative data, and so on, in info records, contracts, or scheduling agreements.
If you use condition indices, you can define your own criteria (for example, vendor or purchasing organization), which are used to select the conditions to be changed.
The conditions to be edited are selected using condition tables that are created in Customizing.
You access the new function in the Purchasing menu by choosing Master data -> Conditions -> Prices .
Effects on Customizing
You must create a conditions index in Customizing for Purchasing at Conditions -> Configure Condition Index.
See also
For more information, see the SAP Library at MM Purchasing -> Conditions and Price Determination -> Condition Maintenance.