Query for Salesforce API connection

[gilmore_staci]

I have gone through salesforce help and they believe the issue is on the power bi side so checking here.

I have an external client app set up to api connect salesforce to power bi.  this is the code i'm using

 its giving me a DataSource.Error: Web.Contents failed to get contents from 'https://caterpillar.my.salesforce.com/services/oauth2/token' Bad Request  error. 

Am I missing something?

let
    // 1. Define Salesforce API credentials
    SalesforceUrl = "https://*Client*.my.salesforce.com",
    ClientId = "ClientKey",
    ClientSecret = "clientsecret",
    
    // 2. Request the OAuth2 Access Token
        TokenResponse = Json.Document(Web.Contents(SalesforceUrl & "/services/oauth2/token", [
        Content = Text.ToBinary("grant_type=client_credentials&client_id=" & ClientId & "&client_secret=" & ClientSecret),
        Headers = [#"Content-Type"="application/x-www-form-urlencoded"]
    ])),
    AccessToken = TokenResponse[access_token],

    // 3. Query the data using REST API (SOQL)
    DataResponse = Json.Document(Web.Contents(SalesforceUrl & "/services/data/v60.0/query", [
    Query =  [q="SELECT Id, Name, Email FROM User WHERE Profile.Name = 'System Administrator'"],
    Headers = [#"Authorization" = "Bearer " & AccessToken]
    ])),
    
    // 4. Parse the results into a table
    Records = DataResponse[records],
    Table = Table.FromList(Records, Record.FieldValues, {"Id", "Name", "Email"})
in
    Table