Azure Devops Build pipeline suddenly fails with authentication error - "Error: Can't resolve Entra ID/OAuth authority for "POWERPLATFORM ENV URL"

[sribhashini]

We have powerplatform environments set up and azure build release pipelines to support deployments. We have service connection which has environment url as server and authenticates with federated credentials. Our pipelines used to work fine but suddenly started to break at build pipeline with below error. Please help us as we have critical releases planned.

"Error: Can't resolve Entra ID/OAuth authority for /api/data/v9. Failed to get response from: /api/data/v9; error: An error occurred while sending the request.; details: The underlying connection was closed: An unexpected error occurred on a send. (SendFailure)"

[egs104]

I’ve noticed this issue as well and appears to be intermittent. Some pipelines that use the same service connection show the error consistently while others do not. I observed that using /api/data/v9. or /api/data/v9 doesn’t resolve properly. It seems like it should be /api/data/v9.0 instead. When I use /api/data/v9.0, the URL resolves correctly. Is this a bug in the task, or is there a parameter we can set to fix it? Or is it a specific url formatting issue when providing the power platform environment in the service connection?

Below is the task and version used which produced the error.

Task : Power Platform Publish Customizations
Description : Power Platform Publish Customizations
Version : 2.0.96
Author : Microsoft