PMI selects a certain number of candidates randomly for the audit purpose. The selection of candidates is a completely random, nobody knows how PMI selects the candidate, or what percentage of candidates are selected for it. All applicants are subject to an audit.
There is no way that you can avoid the PMP Application Audit process.
The purpose of an audit is to ensure the authenticity of the information provided by the candidate while filling in the PMP Certification Exam application form.
In the PMP Application Audit process, PMI asks each candidate to provide the copies of education, experience, 35 contact hours certificate, etc. Once you provide these copies to them, it takes about one week for them to review and complete the audit process.
Once you’re selected for an audit and receive the email from the PMI, you will have 90 days to submit the documents.