Fixing the ERR.DS_API.SOURCE_CONFIG.TABLE_NOT_CONFIGURED error
Written by
Updated at December 17, 2025
Issue description
When loading a Google Sheets spreadsheet or a CSV file, the dataset preview shows this error:
"code": "ERR.DS_API.SOURCE_CONFIG.TABLE_NOT_CONFIGURED",
"message": "Table is not ready yet",
"level": "error"
Solution
This error means the dataset's schema has just been changed. Wait until the preview table is recreated. This may take a few minutes.
If the issue persists
If the above actions did not help, create a support ticket. Provide the following information in your ticket:
- Full text of the error message with the
Request ID. - HAR file with the recorded communications between the browser and DataLens servers.