Cost assingment in SAP Fiori timesheet entry

Hi Friends,

I am working on a project and couple of clarifications from client from timesheet entry app.

We haven't installed new UI5 components and we are working on it to get the latest version.

But, before that I have couple of questions regarding cost assignment field.

1. Once we click on Cost assignment, it shows "Suggested & Add". How this "Suggested" tab works in this app?

2. If I have worklist entries in CAT2 tcode, will it show in timesheet entry app?

3. When I click on Cost Center, it is not showing list of CC and I need to enter any value and click on "Continue search on Server" and then shows list of CC. This is how it works?

4. And also, when I click on WBS entries will it show all? We have almost 5000 WBS and how it will impact performance of the app.

Regards,

S.Srikanth