Hi Every one ,
I have created 2 more phone number input boxes in contact module ,So I need to check duplicate number which means system should not allow duplicate numbers .
For instance ,I have fields called
Mobile,whatsAppNumber,SecondNo if I create a contact like
mobile number: 1234 ,
if I create again one more contact with this number system should not take either if i give
whatsAppNumber: 1234 should not take .
Could any one help on it please ?