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Sfdc wonderSfdc wonder 

Soap Service to avoid Duplicates

i need to write Apex Soap Service Class with the following features.

a)Third party send Lead info(like name,company,address) to this service.
b)i need to avoid duplicate insertion  of Leads in Salesforce DataBase using Company Name.
c)if there is any duplicate lead exist in SF,i need to send back duplication Lead Info to 3rd party.
d)i need to search entire SF DataBase.

How can i Start,Could you please any one give idea to start.

Note:The main concern is If the SF dataBase having lacs of data.
Raja ReddyRaja Reddy
Hi RamSf,

You can pick anyone from below:

1. Using the "Dupeblocker" you can prevent Duplicates. For more datails see this 

2. With the help of you can clean your data(Duplicates). For more datails see this (