Thanks for replay Jessica_H. i am getting this error while using Constant Contact API v2 PHP library. you have given solution of manually moving contact to another list but i am using API. I want to add existing contact into new list which i have created using Constant Contact API v2 PHP library. I have successfully created new list using the v2 API but I want to add existing contact into the created list but i am getting error. Fatal error: Uncaught exception 'Ctct\Exceptions\CtctException' with message 'Conflict' in /var/www/html/test-api/constantcontact/vendor/constantcontact/constantcontact/src/Ctct/Services/BaseService.php:78 i am only getting this error when I am trying to add existing contact into newly created list but if i add new email contact then it's working fine. Please reply. Thanks sourabh
... View more
