How to create user with Service Integration Account with No Password Expiration

Summary:

Hi I need to create a service user with no password expiration we have to set up a connectivity agent in OIC using that common user how can we achieve the same tried the below link but hard to understand.

https://docs.oracle.com/en/cloud/paas/integration-cloud/integration-cloud-auton/use-service-integration-account-no-password-expiration.html#:~:text=Oracle%20Integration%20provides%20a%20service,the%20account%20password%20not%20expire.