Please provide any explanations, materials, pages, etc. regarding [Login URL with "_"].

Current behavior:
① Login URL: xxxx/prweb,
 After logging in, the URL will be: xxxx/prweb/app/app name_/... (※ _ there is)
② Login URL: xxxx/prweb/app/app name/...,
 After logging in, the URL will be: xxxx/prweb/app/app name/... (※ _ there is not)

scenario:
WorkLink is in your email.
If you open the email WorkLink while logged in or not, the behavior will be different.
In the case of ①,
 Worklink URL does not require re-login (ID/PWD input screen) regardless of whether there is a "_" or not.
In the case of ②,
If the worklink URL has "_", you do not need to log in again.
If the worklink URL does not have "_", you will need to log in again.

In addition, the login URL and WorkLink URL are
If they are different (with or without “_”), the pzRequestorID is also different (same OperatorID)