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[saran8]

I tried data from Web URL to Power BI, The below error has been oocuerd. Source system have SSO (Single Sign On) enabled.

Error Message : string reference not set to an instance of a string. parameter name: s

[Anonymous]

Hi @saran8 ,

Based on the information you have provided, this error may occur when the code tries to use a string that has not been initialised. Here are a few steps to troubleshoot and resolve this issue:

1. Ensure that the Web URL from which you are attempting to import data is correct and accessible.
Verify that any necessary query parameters or headers are properly configured in Power BI.

2. Verify that the SSO configuration is set up correctly in Power BI. For the DirectQuery semantic model, SSO settings do not affect the data import process. However, for import scenarios, the SSO credentials of the semantic model owner may be used, depending on the configuration.
You can find more information about SSO configuration here.

Configure Kerberos-based SSO from Power BI service to on-premises data sources - Power BI | Microsof...

If the above steps do not resolve your issue, please provide your version of Power Bi Desktop, describing what you did before the problem occurred. This can help us better understand and solve your problem.

Best Regards,

Ada Wang

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[saran8]

Thanks for the share above step. If I used without SSO URL, The data has been sucessfully updated in same URL. Any other parameter need to be send? Can you know what type of headers need to be send?