Hi, Please help in "There was a conflict between the supplied data and the existing resource" error. I am using constant contact php-api and I am getting the above mentioned error, but it does not occur while creating a new contact while the same error occurs when I am updating a contact (when confirmed opt-in is on he has confirmed the subscription). Also I dont get any error whether it is adding a new contact or updating an existing contact while the Confirmed opt-in is not used. I have already checked the email problem its related to email duplication.Dont know what to do, Please help me. Thanks, MAK
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