Form Recognizer API Invalid Content

Question

Form Recognizer API Invalid Content

Bill Corrigan 35

I see a couple similar conversations on this topic, but no definitive solutions.

We are running a process through Power Automate, files uploaded to blob storage, then an API call to Form Recognizer to process the PDF. The calls to the Form Recognizer started failing this morning and have been all day. (Same error received when using a curl command as well.)

All of the files are PDFs, all can be viewed via the browser as well as downloaded and opened with no problems. File sizes are no different from any other day. Training (and testing) of the models runs with no problems, so I don't think it's an SAS issue. Permissions haven't changed (to the best of my knowledge).

Thoughts on what else to check?

"error": {
  "code": "InvalidRequest",
  "message": "Invalid request.",
  "innererror": {
    "code": "InvalidContent",
    "message": "The file is corrupted or format is unsupported. Refer to documentation for the list of supported formats."
  }
}

romungi-MSFT 48,911 Reputation points Microsoft Employee Moderator

2023-05-04T14:18:08.69+00:00

@Bill Corrigan In which region is your FR resource located? Does this also happen for any of the files that worked previously? Do you also see similar behavior with FR studio when you upload the file and analyze the file? Also, has there been any change in the CORS setting of your storage account?

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romungi-MSFT 48,911 Reputation points Microsoft Employee Moderator

2023-05-04T14:18:08.69+00:00

@Bill Corrigan In which region is your FR resource located? Does this also happen for any of the files that worked previously? Do you also see similar behavior with FR studio when you upload the file and analyze the file? Also, has there been any change in the CORS setting of your storage account?

Answer 1

Bill Corrigan 35

We're running on the East US region.

When the failures started, all of the calls failed, even calls that previously were successful. I had been out of the office for a few weeks, so no changes were made to the account.

I'm guessing something behind the scenes between Azure and Power Automate or FR and storage. I turned the workflows back on yesterday morning to resume troubleshooting and everything started running without issue. I don't know what was wrong, but this is resolved for now I guess.

Eric 6 Reputation points

2024-01-25T01:32:54.5166667+00:00

I know this is over a year old but did you ever figure out what the issue was? I have a similar setup in data factory and form recognizer calls randomly fail every now and then. It's so bad I setup another job to re-run the failures. When I was developing it I encountered them as well. Error one minute then re-running the exact same URL from my datalake and it worked. Really frustrating, and the actual error isn't very helpful since it works when you re-run it. I'm using managed identity to retrieve my datalake URLs. I have the container set to private so the only thing I can think of is that the managed identity sporadically fails to authenticate, though I believe I've encountered it as a public container with signature.
Bill Corrigan 35 Reputation points

2024-01-25T12:50:10.71+00:00

Not really. We haven't experienced the issue again, at least to the extent that I originally opened this ticket. I do see some errors on random runs, but they are sporadic enough that it hasn't climbed my priority list to really investigate and address. Sorry that I couldn't be more help.

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Form Recognizer API Invalid Content

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