If you have created and edited your prospecting sequence, you will need to configure it before implementing it.
To do so, go to the Settings tab of your sequence. There you will find several configuration options, including:
Enable tracking to monitor the open and click-through rates of your sequence in the Statistics tab.
Add an unsubscribe link to allow your prospects to easily opt out and comply with the GDPR, while improving your deliverability.
Choose whether or not to allow the re-engagement of contacts already engaged in other sequences.
Configure the delay after which a prospect will be considered as Has not replied from the moment they receive the last email of your sequence.