Connecting MFA enabled Dynamics 365 V9x by Xrmtooling. Error in connecting : Unable to Login to Dynamics CRMOrganizationServiceProxy is null

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Posted on by MMK

745

i was having this issue in connecting my C# console App to CRM which was working fine a few days before

so the solution is simple

1 make the project with .Net framework 4.6.2 or greater prefer to make it latest

2 use xrmtooling from nuget with the latest version this will resolve the issue

also folow these urls also to do azure side settings

https://nishantrana.me/2020/10/16/fixed-unable-to-login-to-dynamics-crm-or-an-unsecured-or-incorrectly-secured-fault-was-received-from-the-other-party-see-the-inner-faultexception-for-the-fault-code-and-detail/

and of course use TSL12

https://nishantrana.me/2018/04/24/unable-to-login-to-dynamics-crmorganizationserviceproxy-is-null-error-while-using-crmserviceclient/

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a33ik 84,331 Most Valuable Professional on at

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Hello,

Can you please provide the code you use to connect to the instance, your connection string (with the fake ids) but I want to see the structure of it and an example of the usage?
MMK 745 on at

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HI the old code works like that provided you disabled the MFA for your user

string connectionString = GetServiceConfiguration();

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

CrmServiceClient conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(connectionString);

_orgService = (IOrganizationService)conn.OrganizationWebProxyClient != null ? (IOrganizationService)conn.OrganizationWebProxyClient : (IOrganizationService)conn.OrganizationServiceProxy;

WhoAmIResponse whoAmIResponse = (WhoAmIResponse)_orgService.Execute(new WhoAmIRequest());
a33ik 84,331 Most Valuable Professional on at

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There are few things you should consider:

1. You should stop using proxy nonsense. You can simplify code following way without losing any functionality:

CrmServiceClient conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(connectionString);

WhoAmIResponse whoAmIResponse = (WhoAmIResponse)conn.Execute(new WhoAmIRequest());

2. If you have MFA enabled for a user you will have to do some changes in configuration - both on Azure AD side and your config. Check this - www.alphabold.com/.../
MMK 745 on at

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Hi

I was trying to connect my mfa enabled CRM to my console App but was unable to do so after doing lot of search got many connection ways like by ClientID client Secret blabla....

but they use Rest Apis and our Iorganization service code which is used in plugin cannot be used that way so finally got the solution for connecting it

To Connect MFA Enabled Dynamics CRM with C# you just need to use App Password instead of your Password remaining every thing remains same as it was

string connectionString = GetServiceConfigurationfromAppCOnfig();

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

CrmServiceClient conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(connectionString);

_orgService = (IOrganizationService)conn.OrganizationWebProxyClient != null ? (IOrganizationService)conn.OrganizationWebProxyClient : (IOrganizationService)conn.OrganizationServiceProxy;

WhoAmIResponse whoAmIResponse = (WhoAmIResponse)_orgService.Execute(new WhoAmIRequest());

Follow the below Steps to generate App password

1 login to office.com and Open My Account



2 Then go to Security info

4 Then Add Method



5 Then Choose App Password and Create one Give it a Name



6 Copy The Password generated and keep it safe

Enjoy...............................................
MMK 745 on at

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Andrew

1. The very first thing is either you use proxy or not you have to connect to CRM that is the issue does it make sense

2. To connect MFA enabled CRM you don't need to do all those azure configurations to connect

only you need to do is instead of using user's password use "App password" that i have shown in this blog

community.dynamics.com/.../connecting-to-mfa-enabled-dynamics-365-v9-x-crm-instance-through-c-or-console-app
a33ik 84,331 Most Valuable Professional on at

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Moin,

I'm glad you resolved your issue. Url you mentioned doesn't look like a blog post. It looks like another one thread. So because it answers your question I just merge it alltogether.
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There is no "App Password" option in Add method anymore.
MMK 745 on at

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Here is Simple steps for Connection to dynamics

1 Create one App from Azure Portal's App Registration and get the Client Id generated here

2 Create a Client Secret for that App

3 Now use the Client Id and ClientSecret to connect to CRM

public static CrmServiceClient createConnection()

{

try

{

string clientId = "Client Id";

var clientSecret = "ClientSecret";

string organizationUri = "xxxxxx.crm5.dynamics.com/";

var conn = new CrmServiceClient($@"AuthType=ClientSecret;url={organizationUri};ClientId={clientId};ClientSecret={clientSecret}");

return conn;

}

catch (Exception ex)

{

Console.WriteLine("Error while connecting to CRM " + ex.Message);

Console.ReadKey();

return null;

}

}