getting null on quicksight service configuration

Without additional context, it's difficult to say exactly what's causing the null values you're seeing in Amazon QuickSight. Here are a few things you could check to resolve your issue:

• Data source configuration: Make sure your data source is properly configured and that the appropriate permissions are set.
• Data format: Ensure that your data is in a format that QuickSight can read and that the data source is pointing to the correct file or database.
• Data connection: Make sure that QuickSight can establish a connection to the data source. This can be done by checking the data source connection status in QuickSight.
• Data refresh: If you're using a DirectQuery or Live Connection, make sure that the data is being properly refreshed.
• Missing values: Check if there are any missing values in your data that might be causing the null values in QuickSight.
• Calculation logic: If you're using calculated fields in QuickSight, make sure the calculation logic is correct and that there aren't any errors in the formula.

Follow these steps https://docs.aws.amazon.com/quicksight/latest/user/troubleshooting.html to check if they help. By following these steps and checking for any potential issues, you should be able to resolve the null values you're seeing in QuickSight. If you're still encountering problems, consider reaching out to Amazon Support for additional assistance.