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If I'm understanding this correctly, you want to remove a contact from Email List A after he/she signs-up for Email List B? If that's the case you would need to manually remove the contact from Email List A in order to prevent him/her from receiving any future automated emails assigned to Email List A. I hope this helps answer your question! If not, please let us know.
In addition, tags are a great way to segment your contact lists for more targeted marketing. Please click here for a quick video on how to use tags.
Nichelle M Community & Social Media Support
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