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How to access custom connector 400 response body

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Posted on by puavo

Hi,

I have not found a way to read the contents of my custom connector error response. I would like to show a response error message to the user. Response body is always blank.

I have two different responses defined in the custom connector. The 200-response works just the way I want it to.

Any ideas what I'm doing wrong? Thanks.

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Building Power Apps

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi@puavo,

Based on the issue that you mentioned, do you want to add multiple response?

Do you define a proper Resposne part within the OpenAPI definition file (for your custom connector)?

Generally, one way to add multiple responses is to download the OpenAPI definition from the custom connectors list and to open it in a text editor. Next, find your existing response and append a second response. Finally, you can recreate the connector with your updated file.

Please check the sample code as below:

In addition, please consider to delete the connector and remove all the connection. Recreate it.

Also, here is some threads you can check if it helps on your issue.

Custom connector - Adding sample response data thr... - Power Platform Community (microsoft.com)

Solved: Custom Connector - Power Platform Community (microsoft.com)

Hope it could help.

Regards,

Qi
puavo 8 on at

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Thanks for the answer @v-qiaqi-msft .
Yes. I have already added two response just like you just like you explained.
Problem is that 400-response is always blank, I can't access to it. 200-response works fine.
puavo 8 on at

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I found this topic: https://powerusers.microsoft.com/t5/Building-Power-Apps/Error-handling-with-Custom-API/m-p/7726/highlight/true#M3446 "If you are hoping to get service-specific error codes and handle them via formulas, that is not possible in PowerApps today"

Is that still true today?