Not able to deserialize data provided.

Darryl Freinkel · 2025-05-21T15:08:42+00:00

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I have been testing the example in one of your tutorials using the API to send faxes. Below is the logging of the problem.

What does "Not able to deserialize data provided." mean?

What is wrong?

See code/log I uploaded.

Darryl Freinkel.

Send_Fax error log.txt

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LaurenceLabonté

The content of body of the request is incorrect. There is no root element, and the first element should be faxOptions.

From your example, the body (value in postman) of the metadata (key in postman) should be

{
"faxOptions": {},

"userId": "REDACTED",

"subject": "Sending a test fax from the tutorial",

"recipients": [

  {

    "number": "REDACTED",

    "name": "Darryl Freinkel"

  }

],

"comment": "Please forward to Darryl Freinkel"
}