Zoho Inventory API gets 401 error

Hi,

I have been trying to connect through the inventory API using the self-client authentication generated codes and I keep getting error 401 Unauthorized access. I am trying to connect from Excel VBA with the codes below(replaced all credentials with XXXX):

Dim url As String, parameters As String

With CreateObject("MSXML2.XMLHTTP.6.0")

parameters = "method=worksheet.list"

url = "https://inventory.zoho.in/api/v1/items?organization_id=XXXX"

.Open "GET", url, False

.SetRequestHeader "Authorization", "Zoho-oauthtoken XXXX"

.SetRequestHeader "Content-type", "application/x-www-form-urlencoded;charset=UTF-8"

.Send

Debug.Print .Status

End With

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