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Power Platform Community / Forums / Power Apps / Custom Connector - fai...
Power Apps
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Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

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Posted on by 21

I am constantly getting a 404 error when I am using a webservice from Business Central to build

a Custom Connector with.

 

HMBHEADERTEST.Runitagainsam failed: { "statusCode": 404, "message": "Resource not found" }

When testing, it returns a valid 200 reply. Also in Postman it works.

 

I can see others also have problems with this error, but I have not been able to see from other posts in this forum, what 

the solution should be ?

 

Attached screenshot from fiddler.

 

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  • v-yutliu-msft Profile Picture
    on at

    Hi @HenrikMB ,

    Do you mean that when you run an app using custom connector ,you will get 404 error?

    This may be caused by many reasons.

    Here are some similar issue that you could refer:

    https://stackoverflow.com/questions/58521055/powerapps-custom-connector-returns-404-in-app-builder

    https://powerusers.microsoft.com/t5/Connecting-To-Data/Custom-Connector-Post-Action-always-endsup-with-Resource-Not/td-p/63494

    You could check whether their solutions work for you.

    If the problem still exists, you could ask for help here:

    https://powerapps.microsoft.com/en-us/support/pro/ticket/

     

     

    Best regards,

  • HenrikMB Profile Picture
    21 on at

    Hi v-yutliu-msft

     

    The problem with the Powerapps custom connector that can not connect to Business Central is still there, but it is best described in the following thread.

    https://powerusers.microsoft.com/t5/Building-Power-Apps/404-error-trying-to-consume-custom-connector-for-Business/m-p/669526#M213630

     

    There are mentioned a Service Request #: 120021322000110.

     

    Is it possible to get an update from Microsoft about this problem, that for a long time, has been a known issue?

     

  • Community Power Platform Member Profile Picture
    on at

    For me I had the error only on some of the Custom connector actions, which all worked in a flow though.

     

    I found the issue on my end to be that I used e.g. salesInvoices() instead of salesInvoices. That works perfectly fine in Power Automate but for some reason that results in a 404 error in a canvas app. 

     

    I also used the other recommended approach with defining the instance, Company etc as part of the Custom connector inputs and not to fix it in the URL directly.

  • rubengzz1 Profile Picture
    4 on at

    Did you find any solution for this? I am having the same problem..

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