Solved. Thanks to AmMilinPatel's great help. to me it's great!!
Using the help,I(user56534)completed my final source code and share for others's reference.
But it have a bug that I don't know the reason.If anyone know,please generous to me.
[URL-1!]
https://datacentersupport.lenovo.com/ch/ko/warrantylookup#/
[URL-2!]
https://datacentersupport.lenovo.com/ch/ko/products/servers/thinksystem/sr650/7x06/7x06cto1ww/j30a7xlg/warranty
Bug description:The VBA clicks URL-1, then get URL-2 automatically well most case.
But in a great while,between URL-1 and URL-2, a alert window(see attached image) pop up.
In that cast, I must click one of two options. I want to do it in Code.
I tried chd.SwitchToAlert.Accept without success.
My new goal: how can click one of two options between URL-1 and URL-2.
Image desc: Because of not knowing how to upload image,I describe in text.
Based on IP,although physically user is in Switzerland,this website is in US.
Either forward to Switzerland or continue with this US site.
And then below, there're two icons. one is for Switzerland and the other is for US.
'My new revised complete code
Sub ScrapeWTY_Solved()
Dim ss As String
Dim i, j
Dim chd As New Selenium.ChromeDriver
Dim arr As Variant, item As Variant
arr = Array("j30a7xlg", "J303A3DB")
chd.Get "https://datacentersupport.lenovo.com/us/ko/warrantylookup#/"
For i = 1 To 10
For j = LBound(arr) To UBound(arr)
chd.FindElementByClass("button-placeholder__input").SendKeys arr(j)
'-----------------------------------------
' Wait for the submit button to become clickable
'chd.WaitElementPresentByCss("#app-standalone-warrantylookup button", timeout:=5000) 'Not working, Why?
chd.Wait 5000
'chd.SwitchToAlert.Accept 'Not working
' Click the submit button
chd.FindElementByCss("#app-standalone-warrantylookup button").Click
chd.Wait 5000
Debug.Print i, j, arr(j), chd.FindElementByCss("#app-psp-warranty > div.psp-warranty__body > div > div.psp-warranty__status > div > div.warranty-status__content > div > div.chart-time-bucket > div.chart-expires > p:nth-child(2) > strong").Text
chd.GoBack
Next j
Next i
End Sub