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RoyalRoyal 

javascript validation rule on date field ?

Hi,
i want one validation rule like, there two fields is there 
1. Start Date  2. End date,  when useer enter start today and end date should be with in next 90 days only , if end date user select more then 90 days of the start date will get error message.
can you please hel me.

Thanks
 
chanchal_:)chanchal_:)
Your Validation rule condition should look something like this,
End_Date__c - Start_Date__c > 90

Put your desired message which you want to show on the screen in the Error Message field.