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Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / Error when trying to s...
Customer experience | Sales, Customer Insights,...
Suggested answer

Error when trying to switch CrmServiceClient from the Office365 AuthType to OAuth AuthType

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Posted on by OrganizedLivingCRM 5

So Im following this article to try and get our authentication switched over from Office365 to OAuth authentication because the Office365 auth type is deprecated: https://docs.microsoft.com/en-us/power-apps/developer/data-platform/authenticate-office365-deprecation#how-do-i-know-if-my-code-or-application-is-using-ws-trust

I have been trying various different connection strings for days now and i cant get this error to stop being thrown: "Unable to Login to Dynamics CRMOrganizationWebProxyClient is null"

This error isnt really helpful at all and i don't understand whats wrong. Here is my connection string:

AuthType=OAuth; Url=https://XXX.crm.dynamics.com; Username=XXXXXXXXXXX; Password=XXXXXXXXXXX; AppId=51f81489-12ee-4a9e-aaae-a2591f45987d; RedirectUri=app://58145B91-0C36-4500-8554-080854F2AC97; LoginPrompt=Never

And Here is how I'm using it in my C# application:

            System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;

            string crmConn = ConfigurationManager.ConnectionStrings["CRMConnection"].ConnectionString;


            var service = new CrmServiceClient(crmConn);
            return service;

But "service" always returns the above error. What am i doing wrong? How can i find a more useful error?

  • Suggested answer
    Community Member Profile Picture
    Community Member on at
    RE: Error when trying to switch CrmServiceClient from the Office365 AuthType to OAuth AuthType

    Hi,

    Just follow the step.

    Downloads the latest version of 

    • using Microsoft.PowerPlatform.Dataverse.Client;
    • using Microsoft.Xrm.Sdk;

    Just follow the below program 

    • public static void Connect()
    •         {
    •             //  log.LogInformation("C# HTTP trigger function processed a request.");
    •             ServiceClient crmServiceClient = null;
    •             System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
    •             var clientId = "8182544c-3485-4bc3-9884-81617d48e39a";
    •             var clientSecret = "8jm7Q~nhPHGP0Ccl-6a5ow2Tivf4LzADLdZMR";
    •             var organizationUrl = "">org13ffb2c4.crm8.dynamics.com/";
    •             string connectionString = "Url=" + organizationUrl + "; " +
    •             "AuthType=ClientSecret; " +
    •             "ClientId= " + clientId + "; " +
    •             "ClientSecret=" + clientSecret;
    •             crmServiceClient = new ServiceClient(connectionString);
    •             if (crmServiceClient.IsReady)
    •             {
    •                 CreateRecord(crmServiceClient);
    •             }
    •         }
    •         private static void CreateRecord(ServiceClient crmServiceClient)
    •         {
    •             try
    •             {
    •                 Entity newAccount = new Entity("account");
    •                 newAccount["name"] = "Account is crated through Azure";
    •                 crmServiceClient.Create(newAccount);
    •                 //Write the program here
    •             }
    •             catch (Exception)
    •             {
    •                 throw;
    •             }
    •         }

    Thanks ,

    Arshad 

    Please like and subscribe my YouTube Channel and follow my blog for latest interview question and answer.

    www.youtube.com/.../videos

    https://juniorcrmblog.blogspot.com/

    https://juniorazurecrm.blogspot.com/

  • Suggested answer
    Bipin D365 Profile Picture
    Bipin D365 28,961 Moderator on at
    RE: Error when trying to switch CrmServiceClient from the Office365 AuthType to OAuth AuthType

    Hi,

    Have you tried updating the package to latest version?

    www.nuget.org/.../

    I created new console app and I use same code as yours and it works.

    You can download my project from below link and update config file with your credentials and URL.

    github.com/.../WorkWithCsharp

    Please mark my answer verified if this is helpful!

    Regards,

    Bipin Kumar

    Follow my Blog: xrmdynamicscrm.wordpress.com/

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