web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

No record found.

News and Announcements icon
Community site session details

Community site session details

Session Id :
Microsoft Dynamics CRM (Archived)

Call Dynamics 365 Web API without oAuth Authentication

(0) ShareShare
ReportReport
Posted on by

Hei all,

I struggle with the integration of a legacy app to Dynamics 365 on-premise.

The Software can only use Basic Authentication or NTLM Authentication against a Web API.

The CRM is IFD hosted. 

Can we use Basic Authentication instead of oAuth in an IFD hosted enviroment? 

I tried to call the Web API with SOAP UI over Basic Authentication but I get everytime a redirect to the ADFS.

*This post is locked for comments

I have the same question (0)
  • khoait Profile Picture
    452 on at

    Hi. OAuth is the only authentication option if you enable IFD.

  • Twbrck Profile Picture
    on at

    Hei,

    is there a way around this?

    IFD unfortinally has to stay enabled.

  • khoait Profile Picture
    452 on at

    If the legacy app is used internally which means it is in the same network with the CRM server, try connecting your app to CRM using internal URL instead of IFD URL.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Introducing the 2026 Season 1 community Super Users

Congratulations to our 2026 Super Stars!

Meet the Microsoft Dynamics 365 Contact Center Champions

We are thrilled to have these Champions in our Community!

Congratulations to the March Top 10 Community Leaders

These are the community rock stars!

Leaderboard > 🔒一 Microsoft Dynamics CRM (Archived)

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans