VB application working for "http" but not for "https"

Hi All,

I have an application in VBA, with the below code,
*************************************
Private Sub CommandButton1_Click()

On Local Error GoTo errore
Dim http
'Dim WinHttpReq As WinHttp.WinHttpRequest
Dim a As Variant, bbb As Variant, ccc As Variant, ResponseText As Variant

Dim e As Long
Dim status As Long


URL = Sheet1.Cells(6, 3)

soapPlanRequest = "<SOAP-ENV:Envelope xmlns:SOAP-ENV=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xs=""http://www.w3.org/2001/XMLSchema""><SOAP-ENV:Body><pns:findAvailablePlans_R xmlns:pns='urn:PlanImpExpAppWSVi'><pns:mode>0</pns:mode></pns:findAvailablePlans_R></SOAP-ENV:Body></SOAP-ENV:Envelope>"
Set http = CreateObject("WinHttp.WinHttprequest.5.1")
http.Option(4) = &H3300
http.Open "POST", URL, False
http.SetCredentials Sheet1.Cells(3, 3), Sheet1.Cells(4, 3), 0
http.SetAutoLogonPolicy 0
http.SetRequestHeader "Content-Type", "text/xml; charset=UTF-8"
http.Send soapPlanRequest
status = http.status()
ResponseText = http.ResponseText

'
'
'
'

**************************************************

The above code was working fine for both "http" & "https" earlier.

Once after installing TAM authentication certificate the application is not working for "https" but working for "http".

Please assist me how to resolve this issue.

Whether to bypass the certificate authentication or someother solution. ?

Thanks in advance.

Regards,
Surendra

Hi All,
Could some one provide solution for the above issue.?

Regards,
Surendra P.

Great post! It's very nice. Thank you so much for your post.

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