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Ankur SrivastavaAnkur Srivastava 

Anyway to generate custom error message for a unique field ?

Can I change the error message displayed below for a unique field ?
duplicate value found: CHW_Member_Number__c duplicates value on record with id: <RecId>
the above message is not user friendly. 
Dilip_VDilip_V
Ankur,

That is not not possible.
If you are using VF page better go for apex:pagemessages else trigger is the only option to customize error message.

Mark it as solved if it helps.

Thanks.
SalesFORCE_enFORCErSalesFORCE_enFORCEr
Sadly, it is not unless you dont make it unique on the field level but use a trigger to make it unique.