Trying filter the data based on relative dates for which I dont find a solution . Instead creating a compute expression and then filtering based on the expressin value .
Tried the following in filter conditon which didn't work.
contract_Start_Date__c:R:this_month:next_n_months:3
then tried the following in compute expression which didn't work.
case when contract_Start_Date__c>=this_month and
contract_Start_Date__c<=next_n_months:3 then "true"
else "false" end