问题描述
We are using compulsory two factor authentication for our email addresses under our Active Directory.
I have an app that requires a service account, so we created app password for that service account. We acquire access token using following end point -
https://login.windows.net/{tenant_id}/oauth2/token
It works perfectly fine for credentials without two factor authentication and normal password but not for accounts with two factor auth and app password
If we enter app password it returns this error -
AADSTS70002: Error validating credentials. AADSTS50126: Invalid username or password
How can I get it working?
It looks like you are trying to use the Resource Owner Password Credentials Grant, which is in general not recommended (it doesn't support MFA among other things) Instead of using that flow, see if the client credential flow (where you can use an application ID + secret or certificate) fits your needs
In the case of CRM Online, it does support the concept of "application user". You declare the application in AAD with a secret or a certificate. Then you go to CRM Online and add that "application user" with a custom security role.
Then you can use code like this to access CRM web services.
add-type -path "Microsoft.IdentityModel.Clients.ActiveDirectory.dll"
add-type -path "Microsoft.Xrm.Sdk.dll"
$resourceAppIdURI = "https://ORG.crm2.dynamics.com"
$authority = "https://login.windows.net/TENANT.onmicrosoft.com"
$credential=New-Object Microsoft.IdentityModel.Clients.ActiveDirectory.ClientCredential("b1d83e4e-bc77-4919-8791-5408746265c1","<SECRET>")
$authContext = New-Object "Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext" -ArgumentList $authority,$false
$authResult = $authContext.AcquireToken($resourceAppIdURI, $credential)
$sdkService=new-object Microsoft.Xrm.Sdk.WebServiceClient.OrganizationWebProxyClient("https://ORG.crm2.dynamics.com/xrmservices/2011/organization.svc/web?SdkClientVersion=8.2",$false)
$sdkService.HeaderToken=$authResult.accesstoken
$OrganizationRequest=new-object Microsoft.Xrm.Sdk.OrganizationRequest
$OrganizationRequest.RequestName="WhoAmI"
$sdkService.Execute($OrganizationRequest)
这篇关于使用电子邮件地址和应用程序密码从 oauth2/token 获取访问令牌的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！