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"Delta Lake ingestion job failed to get version" error

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Note

On September 1, 2023, we merged and renamed Dynamics 365 Marketing and Dynamics 365 Customer Insights. Dynamics 365 Marketing is now called Dynamics 365 Customer Insights - Journeys. Dynamics 365 Customer Insights is now called Dynamics 365 Customer Insights - Data. For more information, see Dynamics 365 Customer Insights FAQs.

This article helps you resolve the "Delta Lake ingestion job failed to get version" error that might occur when you connect to data stored in Delta format in Microsoft Dynamics 365 Customer Insights - Data.

Symptoms

A Delta data source in Dynamics 365 Customer Insights - Data attempts to connect to a table that uses a feature that requires a Databricks minReaderVersion of 3 or later. In this case, the following error message appears on the Data sources page:

Delta Lake ingestion job failed to get version <DataSourceId>.

When you view the columns in the table, the "Failed to save data source schema" error appears.

Cause

Dynamics 365 Customer Insights - Data supports Databricks features with a minReaderVersion of 2 or earlier. Databricks features that require Databricks reader version 3 or later aren't supported.

Resolution

To solve this issue, remove the feature from your Databricks installation and revert the minReaderVersion to 2. For more information, see Supported Databricks features and versions.