Multiple Condition Records in Rebate Agreement with Different Validity Periods

HI All,

I need to maintain multiple condition records in Rebate Agreement with different validity dates. E..g. Rebate Agreement can be for full year 01.01.2012 to 31.12.2012, but need to maintain cumtiple condition records as below:-

• 01.01.2012 to 31.03.2012 = 10%
• 01.04.2012 to 30.06.2012 = 8%
• 01.07.2012 to 30.09.2012 = 12%
• 01.10.2012 to 31.12.2012 = 5%

I have tries changing validity period, but it is allowing to create only one condition record at a time.

Please let me know the way how multiple records can be maintained like we do in VK12 for normal sales pricing condition types.

Regards,

Gaurav