When your list has been selected for an email campaign launch, it will have the word locked next to it. This indicates that it is being used for a launch, and you cannot add any more records to that list until your email has been sent. Once sent, the list will be unlocked and you will be able to add more names to that list. If you need to add more names before the email goes out please cancel the launch, add your names and relaunch the email.
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