When candidates find your job ad through job boards or directly on your careers page they'll complete the application form you set up to apply. If you turned on EEO/OFCCP reporting or candidate surveys then the candidate will have an option to fill out an additional questionnaire.
Once the candidate has submitted everything their profile will appear in Workable under the job's Applied stage. The candidate will receive an email to acknowledge receipt of the application. You can also set up a custom automated action to email new applicants, which can be sent in addition to the automatic email shown below.
Candidates can withdraw their application by using the link at the bottom of this email. After confirming that they want to withdraw they'll be removed from your Workable account. If the candidate has moved forward in the hiring process or received an evaluation they will not be able to withdraw.
If the candidate didn't complete the EEO survey they'll get an email reminding them to fill it out (though it is not required that they do so).