Delete all Contacts and Start Over

Quick question how do I delete all my uploaded contacts and start over? Also when I re-upload my contacts will I run into any problems? As I want this to be a smooth process so I can start over from scratch.

From the main menu you can go to "Settings" -> "Administrator"/ You will find an area that looks like this:

We usually advise against "Delete All Contacts" as you will also lose all records of contacts who have unsubscribed, bounced, marked your emails as spam, or requested GDPR removal. This button is provided to assist in clearing NEW accounts when the data uploaded was in error.

"Delete All Contacts" - does not remove previous invoices, email templates, uploaded images, users, tags, prospecting pools, etc.

"Delete All Contacts" - also does not change your email sending reputation or have any effect on your email send limit.