Small and medium business | Business Central, N...

401 Unauthorized response when Using Oauth with Onprem Install

(0) Share

Report

Posted on by BG@Dynamics

I'm getting an http 401 "unauthorized" response from the web api on version 18.0.22893.23773. This is a on-prem installation. Is it possible to do the Oauth authentication with an On-prem or do you have to do Windows or user/password?

I have set up an app registration in AAD and set permissions on it, assigned a secret key, etc. I am able to get a token from AAD but when I try to use that token in Business Central, I keep getting the 401.

Can anybody shed some light on this?

Here are the configs for the system. I tried changing the Credential Type from Windows to AccessControlService and using a certificate to get a thumbprint value but, that fell short.

I have the same question (0)

All responses (3)

Answers (0)

Sort by

Suggested answer

raelhefn Microsoft Employee on at

Like (0)

Report
Copy link

Link copied!

Hi,

With authentication methods other than Azure AD, like Windows or NavUserPassword, the credentials that users provide are persisted by application and used for as long as they're valid in Business Central. However, this is more complicated for OAuth, because the security tokens that are used for authentication have a limited lifetime.

Maybe these links can be useful In this issue:

docs.microsoft.com/.../authenticate-web-services-using-oauth

docs.microsoft.com/.../devenv-develop-connect-apps

www.msnjournals.com/.../generic-oauth2-library-for-business-central

Was this reply helpful? Yes No
BG@Dynamics 60 on at

Like (0)

Report
Copy link

Link copied!

Thanks for the input. I don't think I'm in any danger of the AAD token expiring since I'm trying to use it in the code milliseconds after getting it from AAD. Here's the code:

Was this reply helpful? Yes No
raelhefn Microsoft Employee on at

Like (0)

Report
Copy link

Link copied!

401 Unauthorized error: Is your token valid?

If you consistently get 401 unauthorized errors, verify that you have a valid access token. If you have not already done so, create a basic Azure Active Directory (Azure AD) application and a service principal as described in Use portal to create an Azure Active Directory application and service principal that can access resources. Then, use the application or a simple HTTP POST request to verify your access. You will include the Tenant ID, Application ID, Object ID, and the secret key to obtain the access token.

docs.microsoft.com/.../cloud-partner-portal-api-troubleshooting-authentication-errors

Was this reply helpful? Yes No

Join the conversation

Community site session details

401 Unauthorized response when Using Oauth with Onprem Install

Helpful resources

News and Announcements

Quick Links

Season of Sharing Community Challenge Launch!

Women in Power Builds Momentum

Congratulations to the May Top 10 Community Leaders

Leaderboard > Small and medium business | Business Central, NAV, RMS

Featured topics

Product updates

Community site session details

401 Unauthorized response when Using Oauth with Onprem Install

Helpful resources

News and Announcements

Quick Links

Season of Sharing Community Challenge Launch!

Women in Power Builds Momentum

Congratulations to the May Top 10 Community Leaders

Subscribe to this forum!

Select categories

Leaderboard > Small and medium business | Business Central, NAV, RMS

Featured topics

Product updates