There are several reasons why any resume could be rejected. The job market is very competitive. However, the most common reasons for resumes to be rejected are failure to rank well in applicant tracking systems (ATS) and failure to stand out from other applications. To pass ATS, you will need to have the right skills, job titles and keywords listed in your resume that are clearly shown as requirements on each job posting. When a resume is deemed a qualified candidate, it passes through ATS and will be sent to a hiring manager to determine whether to schedule a job interview. You can increase your chances of successfully passing ATS and impressing a hiring manager by including relevant extras in your resume. For example, a section for your relevant professional certifications may lower the likelihood of your resume being rejected by ATS.