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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / OAuth 2.0 Client Crede...
Small and medium business | Business Central, N...
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OAuth 2.0 Client Credential grant type for Business Central

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Posted on by TESDEveloper 10

I am attempting to connect to any of the Business Central Web Services via postman using the grant type client_credentials. 

I can receive a token from the call below ok:

pastedimage1660908081661v1.png

However, if I attempt to use this token in the call below I receive error 401.

pastedimage1660908168523v2.png

I have the App Registration set up with the following granted permissions:

pastedimage1660908202921v3.png

I also have the Azure Application registered and granted in Business Central.

Any help is appreciated. 

  • TESDEveloper Profile Picture
    TESDEveloper 10 on at
    RE: OAuth 2.0 Client Credential grant type for Business Central

    Resolved:

    My issue was using the incorrect token URL.

    Correct URL:

    login.microsoftonline.com/{Tenant ID}/oauth2/v2.0/token

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