Forum Discussion
Json.Document error: 404 Not found
Stephan, I finally found what the error was but not its solution. Power Query is built to handle automatically GET endpoints but not POST. There are a few articles on the Web regarding how to make a POST in Power Query but they a very obscure and specific case oriented. Power Query did not handle POST endpoints as, for example, Postman does. I hope this feature will be implemented in the near future since is part of the basics of REST APIs.
Thanks for your help!
Stephan, thanks for your help!
I agree with your diagnostic, but I don't believe a Power Query bug causes this. The most probable thing is that something is missing or wrong with my input.
Is there something like an "inspector" where I can see precisely what Power Query is sending to the server?
Hi JoseAntonioB ,
Yes, you can enable tracing for Power Query in Power BI Desktop to see precisely what Power Query is sending to the server. To enable tracing, go to File >> Options and settings >> Options. Put a check-in Enable Tracing. You can also click on Open traces folder to get to where the data is logged. Please refer to
How to generate Power BI Desktop traces for troubleshooting : BI Connector
Power BI Desktop diagnostics collection - Power BI | Microsoft Learn
Best Regards,
Stephen Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Stephan, I finally found what the error was but not its solution. Power Query is built to handle automatically GET endpoints but not POST. There are a few articles on the Web regarding how to make a POST in Power Query but they a very obscure and specific case oriented. Power Query did not handle POST endpoints as, for example, Postman does. I hope this feature will be implemented in the near future since is part of the basics of REST APIs.
Thanks for your help!