Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

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Posted on 12 Feb 2020 14:33:24 by HenrikMB

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.

Categories:

Connecting to Data

Connectors

2020-02-12_15-29-...

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rubengzz1 4 on 03 Oct 2023 at 19:41:50

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Re: Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

Did you find any solution for this? I am having the same problem..
Community Power Pla... on 20 Oct 2022 at 07:48:27

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Re: Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

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.
HenrikMB 21 on 26 Aug 2020 at 13:48:31

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Re: Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

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?
v-yutliu-msft on 13 Feb 2020 at 02:50:28

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Re: Custom Connector - failed: { "statusCode": 404, "message": "Resource not found" }

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,