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Issue in get a ODATA API for D365 F&O

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Posted on by RC-27040918-0

Hello,

I have followed the instructions to get the access token using oAuth flow and I have an app in AAD.

I am able to get the access token but when I try to hit the OData APIs with that token, it gives me 401 Unauthorized.

Let me know if there a problem in my scope or it's something else?

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Layan Jwei 8,165 Super User 2026 Season 1 on at

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Hi Ruchita,

What is common? you need to replace common with the tenantId which you can take from Azure portal
"https://login.microsoftonline.com/{{tenantId}}/oauth2/token

and here's what you should fill the body with

grant_type: client_credentials
client_id: your client id
client_secret: your client secret
resource: your environment url

Also I think you confirmed that your other question is answered, so please verify the answers to help others
https://community.dynamics.com/forums/thread/details/?threadid=d82b27d1-f88c-ee11-8179-000d3a570dcd

Thanks,
Layan Jweihan

Please mark this answer as "Verified" if it solved your issue. In order to help others who will face a similar issue in the future

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RC-27040918-0 78 on at

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Hi @Layan Jwei,

I am following this process for authentication - https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-auth-code-flow

and I am able to get AccessToken & RefereshToken but when I use to get [BaseURL]/data then it's not working, and I am getting 401 Unauthorized.

And thanks for this -https://community.dynamics.com/forums/thread/details/?threadid=d82b27d1-f88c-ee11-8179-000d3a570dcd

but when I clicked on verified it's just loading a page a lot and not saved so I will try after some time.

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Layan Jwei 8,165 Super User 2026 Season 1 on at

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Hi Ruchita,

can you then show us what you filled exactly in postman when you called the URL?
show us the link, body and where u put the token

Thanks,
Layan Jweihan

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RC-27040918-0 78 on at

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Hello,

I just set get URL and Token.

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Waed Ayyad 9,135 Super User 2026 Season 1 on at

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Hi @Ruchita Chavda,

Did you add permission of read/ write for you App registration?

You can follow this link in order to add permission to your APP registration:
https://docs.dynamicsmobile.com/platform/erp-integrations/microsoft-dynamics-d365-fo/dynamics-365-finance-and-operations-client-app-registration

Regards,

Waed Ayyad

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