PowerBIErrorCode: DatasourceAnalysisFailedWithUnknownFunctions

HI hiruthick-sm​,
The error DatasourceAnalysisFailedWithUnknownFunctions requires further investigation to identify the underlying cause. First, confirm which MongoDB connector you're using and whether the semantic model uses Import or DirectQuery. If you're using Azure Cosmos DB for MongoDB vCore with DirectQuery, review Power Query transformations for unsupported functions, particularly text filters such as Contains and Begins With. If an unsupported function is identified, consider Import mode or a supported native MongoDB query, then republish and test the report.
Azure Cosmos DB for MongoDB vCore Data Connector - Power Query | Microsoft Learn
MongoDB Atlas SQL interface connector - Power Query | Microsoft Learn
Troubleshoot DirectQuery models in Power BI Desktop - Power BI | Microsoft Learn

Thank you.