Refer the below link for your reference how to modify webconfig dynamically.

Change (Modify) connection string in Web.Config at Runtime in ASP.Net using C# and VB.Net

Hey Kalpesh. Thanks for the response but this klink is for a dynamic connection string. I am looking for help on Dynamic End Points for my Web Services. Basically, I want to change the URI Address of the Web Services when the user logs in. When the user logs in, I will check to see the company they are associated with, get the web service address and use the dynamically created endpoint to call the web service. My web.config is below but this is hard coded in web.config.

<system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="AccountXML" />
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://hpsm-dev.azurewebsites.net/Services/OAuthService.svc"
        binding="basicHttpBinding" bindingConfiguration="AccountXML"
        contract="OAuthService.IOAuthService" name="AccountXML" />
    </client>   
  </system.serviceModel>    

Refer the below links.

Using an IP address for a WCF Service

Can I programmatically override client app.config WCF endpoint addresses?

Hey Mumbai, I believe the 1st article really doid the job!! Thanks. I just want to leave this open for another day while I test and verify the working model and then I will mark as the answer. Thanks again!!