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API testing in Postman using OAth2.0. Successful token authentication but credentials error

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Posted on by Kevin Roman

Hi, I’m trying to test an API from business central online with OAuth 2.0
I created the azure app, configured the api permissions, the secrets and all that.
When I enter the values in postman, I get the token but when I call the API I’m getting the 401 error.

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After that, I use the token and try to call the API but I get this error:

These are my values:

And I’m calling one of the standard APIs that come with business central. I just copy and paste it.

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Business Central

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YUN ZHU 73,171 Super User 2024 Season 2 on at

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API testing in Postman using OAth2.0. Successful token authentication but credentials error

Hi, so strange issue, I have not encountered it, I hope the following test can give you some hints.

Using OAuth to connect Business Central APIs and Web Service in Postman
https://yzhums.com/20690/

Thanks.

ZHU
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Rajvi Khushbu 10 on at

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API testing in Postman using OAth2.0. Successful token authentication but credentials error

Below is a link that may be helpful:

https://yzhums.com/37488/

If you are still unable to resolve the issue, please let me know, and I can guide you through an alternate solution
Kevin Roman 7 on at

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API testing in Postman using OAth2.0. Successful token authentication but credentials error

Sorry, these are the images.