You can delete a an Audience (formerly Role) that has been assigned to a contact

Steps

1. Go to the Contact Profile Page of the contact you want to give a role to

2. Scroll down to the Audience (formerly Roles) box that appears on the left side

3. Press the Delete button next to the

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1. Audience (formerly Roles) Assignment you want to edit

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2. Once the

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1. Audience (formerly Roles) Assignment has been deleted, you can create it again with the correct start date, end date or

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1. audience