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Business central Dataverse connector returning error 500

Hey there,


I'm currently working on a portal for clients to see, approve and download their invoices. 

Since we work in business Central, I ended up using the Dataverse connector. 

But I'm stuck on an error 500, I will outline the steps I took to get to this point to maybe give a better explanation.


Note: this was all tested on a trial e3 account.


Step 1

Set up the dataverse connector inside business central using "Dataverse connection "setup".



Step 2

make the needed tables available, by setting visible to "yes".



Step 3

Make a new website in power pages and check if the tables are available and have data.



Step 4

Add the table into a page view.



Step 5

Apply the permissions.



Step 6 - The problem

Now when i try to show this in the live preview i get this error, and when i open the developer options it says "error 500" which after looking up means "any error we have no clue about" (i think).




I'm at a bit of a loss and any help is greatly appreciated, if there's something i did not explain properly i will try my best to explain better.

Thank you so much in advance!







Advocate I
Advocate I

You can try to enable the diagnostic logs to get more details about it. I also suggest restarting the portal once the configuration is done. 


View error logs | Microsoft Learn

Thank you so much for the reply Gabriel, 


After following your suggestion and checking the logs i'm pretty sure this is the error generated when i try to load the website.


RequestData:, RequestPath:, RequestExtension:, SessionId:, UserId:, CorrelationId:44f00d46-d47e-4973-9a60-ec76dec3710d, Elapsed:0, MemberName:ToCookieOptions, SourceFilePath:C:\__w\1\s\Framework\Adxstudio.Xrm\AspNet\Cms\StartupSettingsManager.cs, SourceLineNumber:574, Category:Application, Message:Invalid path string site setting value for the site setting:Authentication/ApplicationCookie/LoginPath, ErrorCategory:ApplicationError



The part that stood out to me is 


Message:Invalid path string site setting value for the site setting:Authentication/ApplicationCookie/LoginPath



But unfortunately, it still didn't end up making a lot of sense for me. Do u have any idea what this means?


Thank you in advance!

Advocate I
Advocate I

What do you have configured for this setting? See the documentation from Microsoft. Try the Default option.


Local authentication, registration, and other settings | Microsoft Learn




Would u mind telling me where I can find these settings? , the article doesn't seem to make this clear for me. thank you so much 

Advocate I
Advocate I

This a Site Setting. You can try to find it in the table before creating a new record. The name will be the key.


Configure site settings for Power Pages sites. | Microsoft Learn





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