If you have you experienced a problem with the login in Bing ads or had an error "The API is trying to access a service that your organization lacks a service principal for" this article will guide you.
Due to some changes in the authentication processes implemented in Microsoft in mid-2021, some users have had problems with the authentication process with the connector in Dataslayer.
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Example of an error
These errors are external to Dataslayer.
When you get this error try changing your account role to "API User", this should be enough to allow you to log in correctly without errors.
Change the account role
If you still get any similar errors, we encourage you to contact your company's IT administrator or Microsoft support for further assistance.
You can find out how to contact Microsoft through this page.