Execute Power BI deployment from Azure Pipeline

HI kalluu91,

I'd like to suggest you double check if the service account you used to deploy the reports has the corresponding permissions to access the data source. (the service account should have required credentials and access rights to connect to the data source)

If the service account does not have the correct credentials, you can update the data source credentials in the Power BI report before deploying it.
For the methods to update credentials, you can choose to manually verify the data source credentials or use the Power BI REST API/PowerShell cmdlets to update the data source credentials programmatically.

How to Change Data Source Credentials in Power BI 

Documentation about update data source credentials using the Power BI REST API:

Datasets - Update Datasources In Group - REST API (Power BI Power BI REST APIs) | Microsoft Learn

Regards,

Xiaoxin Sheng