High Level Steps:
# Login to SailPoint ISC.
# Navigate to your profile/name, it is available on leftside topmost.
# Navigate to Personal Access Tokens
# Click on New token
# Provide the name of the token, remove the expiration date, and give the scope is sp:scopes:all
# Click on create
# PAT contains Secret and Client ID
Note : who ever has a admin acess in tenant, he/she can create 10 tokens.